50results about How to "Effective whitening" patented technology

The invention discloses probiotic whitening recovery mask essence which comprises five natural probiotic active ingredients, namely saccharomyces lysate, leuconostoc / radish root fermented product filtrate, lactobacillus fermentation lysate, bifida ferment product lysate and acidophil / grape fermentation product respectively. The essence is high in skin-friendly property and fast in permeation, and the skin is safely and effectively whitened for a long time. The invention also discloses a method for preparing the probiotic whitening recovery mask essence.

The invention discloses a moisturizing and water locking mask liquid and its making technology. The moisturizing and water locking mask liquid comprises 0.02-0.25% of Carbomer 940, 5-65% of an alcohol moisturizing agent, 0.01-1.2% of hyaluronic acid, 15-80% of deionized water, 0.1-15% of hydrolyzed pearl, 0.1-1.0% of dipotassium glycyrrhizinate, 1% of triethanolamine and 0.2-20% of a plant extract liquid. The making technology comprises the following steps: adding the Carbomer 940 to a 90DEG C vacuum emulsification pot containing the deionized water under an aseptic condition; carrying out vacuum pump-in of propylene glycol and 1,3-butylene glycol; and adding triethanolamine at 80DEG C, adding hyaluronic acid at 70DEG C, and adding dipotassium glycyrrhizinate, the hydrolyzed pearl, an aloe extract liquid and a Hamamelis mollis extract liquid at 50DEG C to obtain the moisturizing and water locking mask liquid. The mask liquid can reach the moisturizing, water locking and whitening of face skins, and does not irritate the face skins. The making technology is carried out under the aseptic condition, so the quality of the mask liquid is effectively guaranteed.

The invention discloses a composition of yeast fermentation extract. The composition is prepared from 75-95% of bifid yeast fermentation product lysate and the balance of multi-yeast complex, whereinthe multi-yeast complex is prepared from lactobacillus fermentation product filtrate and saccharomycete fermentation product filtrate. The invention also discloses application of the composition of the yeast fermentation extract in cosmetics. By combining the effects of anti-ultraviolet damage, purification, regeneration, oxidation resistance and wrinkle prevention of the bifid yeast fermentationproduct lysate and the multi-yeast complex as well as the synergistic effect of the multiple yeast for caring skin, the composition disclosed by the invention realizes multiple care effects on skin and realizes safe and durable effective care.

The invention discloses a red wine mud facial mask. The red wine mud facial mask is a dosage form which can be uncovered after coating and drying are conducted and comprises the following ingredients which comprise deionized water, wine extractives, ethanol, vinol, glycerol, butanediol, dimethyl silicone polymer, polysorbate-20, amp aminomethyl propanol, phenoxyethanol, ethylhexylglycerin, hydroxyethyl cellulose and cellulose gum. The invention further discloses a preparation method for the red wine mud facial mask. Red wine mud which is an accessory substance of wine making is applied to the field of personal care products, the red wine mud facial mask which is easy to depart and use is prepared, the red wine mud facial mask is soft and has functions of skin lighting, moisture maintaining, cutin removing and the like, and can nourish the skin and make the skin to be fine and smooth and glossy.

The invention discloses a probiotics compound which comprises the following components in percentage by weight: 15-30% of a saccharomyces lysate, 15-30% of a leuconostoc / radish root fermented product filtrate, 15-30% of a lactobacillus fermented lysate, 15-30% of a bifida fermented product lysate and 15-30% of an acidophil / grape fermented product, totaling 100%. The probiotics compound disclosed by the invention has a good application prospect in the field of preparation of mask essence, is good in skin friendliness and quickly permeates, so that skin can be whitened safely and effectively and the whitening effect lasts for a long time.

The invention discloses glucose oxidase-containing toothpaste and a preparation method thereof. The glucose oxidase-containing toothpaste comprises 0.5-5% of glucose oxidase, 0.5-2% of Chinese herbal medicine extract and the balance common accessory materials for toothpaste making. The glucose oxidase is used in toothpaste in a glucose oxidase microcapsule form, can effectively prevent and treat glucose oxidase oxidation failure caused by contact with air. The glucose oxidase-containing toothpaste contains the traditional Chinese medicine components, can whiten teeth and has toothpaste common effects of sterilization, inflammation diminishing and tooth cleaning. Glucose oxidase has synergism on the traditional Chinese medicine components so that the traditional Chinese medicine components can produce better effects.

The invention discloses an ice silkworm silk nanocarbon mask, which is mainly prepared from the following components by weight: 0.1 to 5 parts of nanometer activated carbon, 1 to 4.8 parts of macromolecular hyaluronic acid, 2.2 to 5.4 parts of hyaluronic acid oligomer, 2 to 6.5 parts of carbomer, 0.2 to 2.3 parts of egg yolk lecithin, 0.3 to 1.4 parts of French rose extractive, 0.6 to 2.2 parts of allantoin, 0.1 to 0.6 part of trimethylglycine, 0.01 to 0.2 part of menthyl acrylate, 0.01 to 0.1 part of menthol, 0.1 to 0.3 part of methylparaben, 0.1 to 0.3 part of propyl hydroxybenzoate, 0.1 to 1.2 parts of VE, 20 to 50 parts of deionized water, and 3 to 18 parts of glycerinum. According to the ice silkworm silk nanocarbon mask provided by the invention, by utilizing a system formed by the nanometer activated carbon, carbon liquid can be promoted to be fully dispersed into a water solution so as to realize the abilities of deep penetration and pigment removal which cannot be realized by common carbon powder, so that the ice silkworm silk nanocarbon mask can be used for nursing symptoms such as irritability, ulcer and bacterial infection, has a better effect on removing acnes and the like, can be beneficial to pore refining, is applied in facial darkness, coarse pore and superficial wrinkles, and is capable of deeply hydrating, effectively whitening, removing wrinkles, removing acnes, resisting allergy and deeply cleaning skins at the same time.

The invention discloses a composition of yeast fermentation extracts. The composition is prepared from 75 to 95 percent of a bifida yeast fermentation product cell-lysing substance and the balance ofa poly-yeast compound and a perigord truffle yeast extract, wherein the content of the perigord truffle yeast extract is 0.01 to 0.5 percent. The invention also discloses application of the composition of the yeast fermentation extracts in cosmetics. By combining the effects of ultraviolet damage resisting, purifying and repairing, oxidation resisting and crease resisting of the bifida yeast fermentation product cell-lysing substance and the perigord truffle extract and through a synergistic skin care effect with poly-yeast, multiple care effects on skin and safe and long-term effective care can be realized.

The invention discloses a sericin whitening and moisturizing facial mask liquid and a preparation method thereof. The mask liquid contains the following components (by weight): 10-20 parts of enzyme,5-20 parts of sericin, 5-15 parts of nonapeptide, 10-25 parts of Lycium ruthenicum extract, 5-20 parts of turmeric extract, 5-20 parts of plant polysaccharide, 5-10 parts of a humectant, 0.5-2 parts of a thickener, 0.05-0.2 part of a solubilizer, 0.015-0.2 part of a nutritional additive, 0.05-0.1 part of a neutralizer, 0.05-0.2 part of a preservative, and the balance deionized water supplemented to 100 parts. The added enzyme, sericin, nonapeptide, Lycium ruthenicum extract and turmeric extract have anti-oxidation, free radical removal, anti-aging, anti-radiation biological activities, etc. Bymatching the enzyme, sericin, nonapeptide, Lycium ruthenicum extract and turmeric extract with plant polysaccharide, the humectant and the nutritional additive, the mask liquid has both pharmacological and nutritional dual effects, is not liable to cause anaphylaxis, but achieves effects of whitening and moistening, moisturizing, delaying skin aging and the like.

The invention discloses a skin whitening platycodon root compound soap. The soap comprises the following raw materials in parts by weight: 0.05-0.15 part of platycodon root extract, 15-25 parts of sodium cocoate, 50-70 parts of sodium palmitate, 3-5 parts of almondamidopropylamine oxide, 3-5 parts of sodium lauroylglutamate and 20 parts of water. The skin whitening platycodon root compound soap is exquisite and stable in foam, has mild properties and low skin irritation and can further whiten the skin effectively especially after the platycodon root extract is added.

The invention discloses an asphalt mixing plant tail gas white smoke eliminating treatment apparatus, and belongs to the technical field of flue gas treatment. The asphalt mixing plant tail gas whitesmoke eliminating treatment apparatus comprises an installing frame, a flue gas heat exchange assembly, a spraying assembly, a circulating water supply assembly, a steam-water separation assembly, anautomatic feeding assembly, a flue gas mixing assembly and a flue gas discharge assembly, wherein the flue gas heat exchange assembly is arranged on the side of the spraying assembly, the circulatingwater supply assembly is arranged on the side of the spraying assembly, the steam-water separation assembly is arranged on the installing frame, the automatic feeding assembly is arranged on the top portion of the installing frame, and is further positioned on the steam-water separation assembly, the flue gas mixing assembly is arranged on the top portion of the installing frame, and the flue gasdischarge assembly is arranged on the side of the installing frame. According to the present invention, the flue gas treated by the flue gas heat exchange assembly, the spraying assembly, the circulating water supply assembly, the steam-water separation assembly, the automatic feeding assembly and the flue gas mixing assembly cannot present the white color during the externally being discharged, such that the unnecessary misunderstanding cannot be caused due to the colorlessness of the discharged flue gas.

The invention discloses tooth powder for whitening, removing stains and preventing tooth decay. Besides a normal function of cleaning an oral cavity to keep fresh breath, the tooth powder, by adding functional materials, can additionally realize effects of whitening, removing stains and preventing tooth decay, and the tooth powder has good functions of strengthening gum and caring teeth. The tooth powder disclosed by the invention is obvious in using effect, free from any toxic and side effects as well as irritation, and good in taste.

The invention provides a sugar-lowering, lipid-lowering, anti-oxidation and high-fiber compound fruity liquid beverage capable of hindering heat absorption. The sugar-lowering, lipid-lowering, anti-oxidation and high-fiber compound fruity liquid beverage comprises apple juice, grape juice, blueberry juice, cranberry juice, passion fruit juice, pomegranate juice, cherry juice, lemon juice, granularkonjac, polydextrose, erythritol, sucralose and folic acid, and water, white granulated sugar, citric acid, sodium citrate, potassium sorbate, edible essence, vitamin D, vitamin E, vitamin B6, vitamin C, gellan gum, carrageenan, xanthan gum, iron and zinc can be also added into the beverage. A production process of the beverage includes: preserving the raw materials, processing, filling, sterilizing, cooling, inspecting, and storing the finished products. The beverage containing different types of dietary fibers is high in dietary fiber content, capable of providing satiety for a drinker for3-4 hours to reduce the eating interest of the drinker, capable of effectively improving constipation, rich in resveratrol, rutin and genistein and capable of effectively eliminating free radicals andhas effects of resisting inflammation, whitening and resisting aging.

The invention provides a combined SO2 / NOx emission reduction method and relates to the technical field of sintering pollutant emission reduction. The method includes: performing ammonia desulfurization process on sintering flue gas in a main flue through an ammonia desulfurization column; performing heat exchange on the desulfurized flue gas for increasing temperature by means of circular coolingflue gas in a circular cooling device through a circular cooling heat exchanger; then denitrating the heated sintering flue gas in a denitration reactor. In the method, after the sintering flue gas isdesulfurized and cooled by the ammonia desulfurization column, the desulfurized flue gas is subjected to heat exchange for increasing temperature by means of circular cooling flue gas through a circular cooling heat exchanger, so that after the heat exchange, temperature of the sintering flue gas reaches the required temperature in the denitration reaction in the following denitration reactor. Therefore, by reasonable combination of the ammonia desulfurization process and the denitration reactor, low-cost combined emission reduction of the SO2 and NOx of the sintering flue gas is achieved. The discharged flue gas is also effectively dewhitened.

The invention discloses a moisturizing and skin-protecting mask liquid and a preparation method thereof. The moisturizing and skin-protecting mask liquid is prepared from the following raw materials by weight percent: 0.02%-0.25% of a thickener, 5%-65% of an alcohol humectant, 0.01%-1.2% of hyaluronic acid, 15%-80% of deionized water, 0.1%-1.0% of dipotassium glycyrrhizinate, 1% of triethanolamine, 0.01%-1.0% of beta-glucosan, 0.05%-10% of an acanthopanax extracting solution, 0.05%-10% of a bletilla striata extracting solution, 0.09%-9%of flavanone and 0.90%-10% of a polygonum multiflorum extracting solution. The method comprises the following steps: preparing the mask liquid in a sterile condition; adding the thickener to a vacuum emulsifying pot with deionized water at 90 DEG C; pumping the alcohol humectant in vacuum; and respectively adding triethanolamine, hyaluronic acid, dipotassium glycyrrhizinate, the beta-glucosan, the acanthopanax extracting solution, the bletilla striata extracting solution, the flavanone and the polygonum multiflorum extracting solution at 78 DEG C, 68 DEG C and 50 DEG C, so as to form the finished product. According to the mask liquid disclosed by the invention, the effects of moisturizing, locking water and whitening the facial skin can be reached; the facial skin is not stimulated; the preparation process is carried out in the sterile condition; and the quality of the mask is effectively ensured.

The present invention provides an oral composition capable of easily whitening, smoothing and glossing teeth. The oral composition contains the following components (A), (B) and (C): (A) 0.02-0.7wt.% (based on fluorine atom) fluoride; (B) 0.1-5mol / kg , an acidic compound or its salt with a pKa value (25° C.) of 2.5 to 6.0; (C) 5 to 90 wt.% of water, and the pH value of the composition itself or its 30 wt.% aqueous solution is in the range of 3 to 5.5 between.

The invention provides a flue gas white-smoke eliminating system of a heating boiler, belongs to the technical field of boilers, and solves the problems of a poor white-smoke eliminating effect and insufficient stability of an existing heating boiler. The flue gas white-smoke eliminating system of the heating boiler comprises a boiler body and a chimney, and is characterized in that a primary energy saver, a secondary energy saver, a condenser, a condensing device, a pre-heating white-smoke eliminating device, a mixing accelerating device and a chimney are sequentially connected between the boiler body and the chimney; a primary heating water circulation pipeline is arranged between the boiler body and the primary energy saver; a secondary heating water circulation pipeline is arranged between the secondary energy saver and the condenser; and an air pipeline for introducing preheated air is connected onto the mixing accelerating device. Through arranging more than three groups of heatexchangers, the boiler flue gas temperature is reduced to be below a condensation point, moisture in the flue gas is separated out, and the white smoke of the flue gas can be effectively eliminated.

The invention relates to a radix puerariae skin whitening cream. Each part of whitening cream comprises kudzu root, glyceryl monostearate, polyoxyethylene ethylene glycol monostearate, squalane, tricaprylin, stearyl alcohol, dimethyl polysiloxane, propylene glycol, sodium ethylene diamine tetracetate, kojic acid, gamma-furanone glucoside, sodium citrate, essence and ion exchange water. The skin whitening cream can be used as follows: after cleaning the face, evenly applying the prepared skin whitening cream to the face, and lightly massaging the face until the skin whitening cream is completely absorbed. The invention can reduce melanin and effectively whiten skin. The skin whitening cream is not available to men.

The invention provides a traditional Chinese medicine composition with whitening effect and its preparation method and application. The traditional Chinese medicine composition is made of the following raw materials in proportions by weight: 5-30 parts of poria cocos, 2-18 parts of propolis, and acacia 1‑15 parts of flower, 2‑20 parts of forsythia, 3‑18 parts of emblical seed, 1‑10 part of bodhi seed. The invention also provides a skin-care cosmetic with whitening effect containing the traditional Chinese medicine composition and skin-care auxiliary materials. The traditional Chinese medicine composition of the present invention can promote the blood circulation of capillaries in the skin, improve the nutritional supply of the skin, enhance skin elasticity, reduce skin keratinization and pigmentation, and achieve the purpose of effective whitening. At the same time, the Chinese medicinal composition has no effect on the human body Toxic and side effects are beneficial to popularization and application.

The invention provides application of magnesium hydride in preparation of a composition for preventing and treating chronic periodontitis, and magnesium hydride toothpaste. The weight percentage of magnesium hydride in the composition or the magnesium hydride toothpaste is 1-3%. The toothpaste has the effects of sterilizing, resisting inflammation, resisting oxidation, removing tooth stains, improving breath or halitosis, relieving redness, swelling and bleeding of gingiva and gingival recession, and improving periodontitis symptoms. The invention also discloses application of magnesium hydride in preparation of a composition for preventing and treating chronic periodontitis. According to the invention, a proper amount of magnesium hydride fine particles are added into the toothpaste body;and the magnesium hydride particles can be hydrolyzed into hydrogen and magnesium ions with an anti-inflammatory effect, and also can inhibit alveolar bone absorption. The composition containing magnesium hydride is safe to use, and can effectively prevent the occurrence and development of periodontal diseases after long-term use.

The invention discloses a whitening toothpaste, which comprises a friction producing material, a washing foaming agent, a bonding agent, a humectant, a sweetening agent and an aromatic, and is characterized by also comprising a protein amylase accounting for 2-5 wt% of the paste, and oxydol accounting for 0.1-1.5 wt% of the paste. The washing foaming agent is sodium lauryl sulfate (ROSO3Na) which accounts for 2-3 wt% of the paste. The aromatic is mint or green tea. The whitening toothpaste has obvious antibacterial action and the effect of whitening, and is low in cost and simple to prepare.

The invention relates to the field of toothpaste, in particular to whitening toothpaste. The whitening toothpaste comprises, by weight, 15-25 parts of cuttlefish bone meal, 0.3-0.5 part of adhesive, 10-15 parts of friction agents, 30-40 parts of humectants, 2-7 parts of sodium lauryl sulfate, 3-5 parts of yeast powder, 1-2 parts of lignum aquilariae resinatum, 1-2 parts of moschus, 5-10 parts of herba asari, 3-6 parts of rhizoma ligustici, 3-6 parts of rhizoma nerdostachyos and 2-4 parts of rhizoma chuanxiong. The whitening toothpaste has the advantages that effects of natural substances are realized, accordingly, teeth can be effectively whitened without being decayed, and the whitening toothpaste is low in cost.

The invention relates to an oral cavity cleaning device, which comprises a cover body, a main body and a base. A fixing trough is formed in the upper end of the base and is opened upwards; the main body comprises an operation handle, a connecting piece and a function section connected sequentially from bottom to top; a sterilizing device, a camera and a clamping device for fixing an oral cavity cleaning part are sequentially arranged on the upper part of the function section from bottom to top; a control system is arranged in the operation handle; a control button is arranged on the operation handle; the control system is electrically connected with the sterilizing device, the camera and the control button. According to the oral cavity cleaning device provided by the invention, the camera and the sterilizing device are arranged on the main body, so that not only can image information of an oral cavity of a user be acquired, but also a sterilizing effect can be achieved; in addition, through the oral cavity cleaning part connected with the clamping device, teeth and gingivae are cleaned through multiple ways, so that an effect on cleaning the oral cavity can be better achieved.

The invention belongs to the technical field of cosmetics, and particularly relates to a traditional Chinese medicine composition with freckle-removing and whitening effects, and a preparation methodand application thereof. The traditional Chinese medicine composition with freckle-removing and whitening effects comprises a first composition and Jiuquxiangzhi vinegar, wherein the first compositioncomprises ampelopsis grossedentata tea, eucommia ulmoides, jujubes, mulberries, sea buckthorn, Gordon euryale seeds, papayas, pollen pini, honeysuckle flowers, Chinese wolfberries, aloes and ginkgo leaves, wherein the Jiuquxiangzhi vinegar is original pulp vinegar prepared from famous-wine bacterial-system yeast in alcoholic fermentation. The traditional Chinese medicine composition has the advantages of long preservation time, whitening performance and freckle removal performance.

The invention discloses a composition with the effect of whitening and brightening complexion and a cosmetic composition, and relates to the technical field of cosmetics. The composition with the effect of whitening and brightening the complexion consists of the following components in parts by weight: citrus Peel extract: 0.1-5 parts; Jutianchi fruit extract: 0.1-10 parts; Niacinamide: 0.1-10 parts; D-Panthenol: 0.1-5 parts; Soluble proteoglycan: 0.1-3 parts. The present invention uses a specific ratio of citrus peel extract, Litianchi fruit extract, nicotinamide, D-panthenol and soluble proteoglycans in combination, wherein D-panthenol and soluble proteoglycans exert their own moisturizing and hydrating effects, It can also promote the whitening effect of citrus peel extract, Tianchi fruit extract and nicotinamide, further enhance the barrier function of the stratum corneum and inhibit melanin, increase the water content and intercellular density of the stratum corneum, and have whitening, Evens and brightens skin tone.

The invention discloses a smoke waste heat recovery and hot water white smoke elimination system and a working method thereof. The system comprises an evaporator and a heater, the evaporator and the heater are embedded in a flue, the heater is arranged above the evaporator, a refrigerant outflow side port of the evaporator is connected with a refrigerant inflow side port of a compressor, a refrigerant outflow side port of the compressor is connected with a refrigerant inflow side port of a condenser, a refrigerant outflow side port of the condenser is connected with a refrigerant inflow side port of the evaporator, a white smoke eliminating hot water outflow side port of the heater is connected with a circulating hot water inflow side port of the condenser, and a circulating hot water outflow side port of the condenser is connected with a white smoke eliminating hot water inflow side port of the heater. According to the system, the evaporator is in direct contact with the smoke so that sensible heat and latent heat in the smoke are recycled; and the temperature of the cooled and dehumidified smoke is increased through the heater, the dew point temperature of the smoke is increased, the white smoke eliminating effect is achieved, and the combustion efficiency of a gas-fired boiler is effectively improved.

The invention discloses a high-content vitamin C separation type facial mask and a preparation method thereof. Vitamin facial mask cloth comprises an upper layer of non-woven fabric and a lower layerof non-woven fabric; the upper layer of non-woven fabric and the lower layer of non-woven fabric are provided with a vitamin C mixture of vitamin C powder and starch; the bag body of a facial mask packaging bag is divided into a first cavity and a second cavity through a heat sealing side; the vitamin facial mask cloth and facial mask essence are arranged in the first cavity and the second cavitycorrespondingly; a thin position exists in the middle of the heat sealing side; the thin position is broken down when being subjected to certain pressure. The facial mask cloth contains rich vitamin C, so that sufficient whitening components are guaranteed and effective whitening can be realized; rich basic moisturizing agents are added in the facial mask essence, composite plant extracting liquidcan supplement sufficient water for skin before whitening is conducted, and pore channels are opened, so that vitamin C can enter the skin basic layer easily; according to the method, the vitamin C is completely utilized, so that the problem that the vitamin is deactivated and decolored when being added in other dosage of products is avoided.

The invention discloses a coix seed whitening sunscreen and a preparation method thereof, which is composed of the following raw materials in parts by weight: 20-35 parts of barley extract, 0.2-0.6 part of North American witch hazel extract, 5-20 parts of arbutin, 0.05‑0.15 parts butanediol, 1‑10 parts cactus extract, 0.1‑0.4 parts citric acid, 60‑80 parts deionized water, 3‑6 parts dipotassium glycyrrhizinate, 0.1‑0.3 parts sodium hyaluronate, 0.5 parts ‑1.5 parts of ultraviolet absorber, the ultraviolet absorber is one or more of ultrafine titanium dioxide powder and ultrafine zinc oxide. The coix seed whitening sunscreen of the invention has mild performance, no irritation to the skin, and can play comprehensive protective functions of whitening, ultraviolet resistance and anti-inflammation under the premise of safety and harmlessness.

The invention discloses toothpaste containing vitamins and a preparation method of the toothpaste. The toothpaste is prepared from the following raw materials: a humectant, a surfactant, an excipient, a friction agent, a regulator, a preservative, vitamin C, vitamin B1, vitamin B2, vitamin B6, vitamin B12, essence, epsilon-polylysine and prune extract obtained by a specific method disclosed by the invention. The vitamin-containing toothpaste provided by the invention can effectively whiten teeth.

The embodiment of the invention discloses a tooth brushing device and a tooth whitening method. The tooth brushing device comprises a brush head, a brush holder, a light source, a control assembly anda near field communication (NFC) assembly, wherein the brush head is provided with bristles, and is provided with a light guide assembly inside; the brush holder is detachably connected with the brush head; the light source is arranged on the brush holder, and is used for emitting light rays beneficial to tooth whitening and oral inflammation diminishing, and the light rays emitted by the light source are transmitted in the brush head through the light guide assembly, and are guided out of the brush head through the light guide assembly; the control assembly is arranged in the brush holder, is connected with the light source, and is used for controlling the light source to work; and the NFC assembly is connected with the control assembly, and is used for reading information of the brush head and sending the information of the brush head to the control assembly for verification. According to the tooth brushing device, the NFC assembly is connected for verification, so that the tooth brushing device has good whitening and anti-inflammatory effects, and meanwhile, is safe and reliable.