About 13%
Humectants:
Butylene Glycol plays multiple roles in the formula. It's solvent, humectant, and auxiliary preservative cooperating with D-Panthenol and Glycerin. It is very safe and common in cosmetics industry.
Glycosyl Trehalose/Hydrogenated Starch Hydrolysate can prevent from dehydration
Hydrolyzed Sodium Hyaluronate, small molecular weight hyaluronate salt, can sink into the crevices between corneocytes of stratum corneum to catch water
Hydroxyethyl Urea is a good moisturizer that can keep the skin hydrated and elastic.
Glycerin/Glyceryl Acrylate/Acrylic Acid Copolymer/Propylene Glycol These ingredients are a complex raw material that is used for thickening and skin conditioning.
Allantoin has three major benefits that are well documented in many scientific papers:
1. Helping the natural desquamation of stratum corneum and increasing skin smoothness
2. Moisturizing effect result from its ability to increase the water bounded to the intercellular matrix and keratin, thereby softening skin and making the skin look healthier.
3. Soothing, anti-irritant and skin protectant effect is due to the ability of Allantoin to form complexes and neutralize many irritant and sensitizing agents.
Here we take its moisturizing effect in terms of the proportion to make skin glow.
Thickener:
Xanthan Gum and Sodium Polyglutamate are both thickeners and humectant. Both are from natural resources, corn starch and Natto.
Preservatives:
Hydroxyacetophenone is patented natural preservative, being extracted from berries to protect the masks from bacteria and any gem.
Emulsifier:
Polysorbate 20 is a used to cover Neroli oil to dissolve in the formula. Even though EWG website categorized it as moderate hazardous due to its residues, Ethylene Oxide and 1,4-dioxane, polysorbate 20 allowed to use in cosmetics is purified very well to remove the residue thoroughly. So, safety won't be a concern.
While we are selecting the ingredients, we must consider many things, including safety recheck, pH vale, Hydrophile-Lipophile Balance (HLB) value, quantity, convivence to utilize in the formula and cost. After evaluating all the points, we eventually decided to go for polysorbate 20 at 0.015% in this formula.
Fragrance
Many youtubers, websites or bloggers hate fragrance and think it is bad for skin and irritates skin. However, if the formula design well and cover fragrance particles with a proper emollient, the fragrance won't hurt your skin or irritate your skin neither, especially the essential oil as fragrance.
While we design this formula, we hope this product can also relax the mood during the usage, So, we put Neroli oil as a natural fragrance to cheer you up. Who doesn't like some pleasure from a good smell?