The invention provides an additive-free 
mask and a preparation method thereof. The additive-free 
mask comprises the following components in parts by 
mass: 77-86 parts of water, 1-5 parts of glycerinum, 1-5 parts of 
trehalose, 0.01-0.04 part of 
centella root extract, 0.01-0.04 part of 
polygonum cuspidatum root extract, 0.01-0.04 part of 
scutellaria baicalensis root extract, 0.01-0.04 part of tea extract, 0.01-0.04 part of 
glycyrrhiza glabra root extract, 0.01-0.04 part of 
chamomilla recutita flower extract, 0.01-0.04 part of rosemary leaf extract, 5-8 parts of 1,3-
propylene glycol, 0.2-0.6 part of 
pectin, 0.05-0.3 part of 
xanthan gum, 0.25-0.45 part of 
corn starch, 1-2 parts of collagen, 0.02-0.06 part of silk 
protein glue, 1-2 parts of 
artemisia capillaris extract, and 0.01-0.05 part of 
chamomile extract. According to the additive-free 
mask, the raw materials are purely natural components, and essence, 
pigment and 
preservative are not added, so that the allergic sources are avoided, and the safety is high; the additive-free mask is high in resistance to oxidation and 
ageing; a plurality of natural extracts and 
active components are mixed and coordinately act to realize the completely-efficient 
skin care effect; the no-cleaning formula is adopted, thus the mask enables silk-like soft and smooth feeling of the 
skin; the additive-free mask is applicable to group with different 
skin type.