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When in doubt, licensed aesthetician Hadiyah Daché — also known as the “Fairy Glow Mother” — said shoppers should type the product into INCIdecoder, an online cosmetics database, to get a full rundown.

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Similar to CosDNA, you can quickly check comedogenicity & irritancy ratings, main functions and good-for-the-skin-rating.

Ingredient name	what-it-does	irr., com.	ID-Rating
Water	solvent
Ethoxydiglycol	solvent	0, 0
L Ascorbic Acid	antioxidant, skin brightening		superstar
Propylene Glycol	moisturizer/humectant, solvent, viscosity controlling	0, 0
Glycerin	skin-identical ingredient, moisturizer/humectant	0, 0	superstar
Laureth 23	emulsifying	0, 3
Alpha Tocopherol	antioxidant	0-3, 0-3	superstar
Phenoxyethanol	preservative
Triethanolamine	buffering	0, 2
Ferulic Acid	antioxidant, antimicrobial/antibacterial		goodie
Panthenol	soothing, moisturizer/humectant	0, 0	goodie
Sodium Hyaluronate	skin-identical ingredient, moisturizer/humectant	0, 0	goodie

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Unlike on CosDNA, we have detailed, research-referenced ingredient explanations written by a cosmetic formulator & scientist. We are constantly working on adding new descriptions.

Hydrolyzed Hyaluronic Acid - goodie

What-it-does: moisturizer/humectant

Hydrolyzed Hyaluronic Acid is a low molecular weight, chemically chopped up version of the naturally big molecule and current IT-moisturizer, Hyaluronic Acid (HA). The TL; DR version of HA is that it's a huge polymer (big molecule from repeated subunits) found in the skin that acts as a sponge helping the skin to retain water, making it plump and elastic. As HA is a polymer, the subunits can be repeated many times (as a high-molecular-weight version), or just a few times (as a low-molecular-weight version).

We wrote in detail at HA about how different molecular weight versions do different things both as a component of the skin and as a skincare ingredient, so click here and read about all the details. Hydrolyzed Hyaluronic Acid can also come in different molecular-weight versions with different properties:

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Key ingredients are highlighted separately and you can easily check ingredients by functions such as sunscreen filters, preservatives or emulsifiers. We automatically tag products that are drying alcohol-free and fragrance- and essential oil free.

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