Highlights
Skim through
| Ingredient name | what-it-does | irr., com. | ID-Rating |
|---|---|---|---|
| Hydrogenated Polyisobutene | emollient, viscosity controlling | 2, 1 | |
| Hydrogenated Styrene/Isoprene Copolymer | viscosity controlling | ||
| Ethylene/Propylene/Styrene Copolymer | viscosity controlling | ||
| BHT | antioxidant, preservative |
Rude Eye GlosseryIngredients explained
A synthetic liquid oil that can replace mineral oil or silicone oils in the cosmetic formulas. There are different grades depending on the molecular weight ranging from very light, volatile, non-residue leaving ones to more substantial, slight residue leaving ones.
Apart from leaving the skin soft and smooth (emollient), it's also used as a waterproofing agent in sunscreens or makeup products and as a shine enhancer in lip gloss formulas.
We don't have description for this ingredient yet.
A helper ingredient that's used as an oil gelling agent together with its sibling, Butylene/Ethylene/Styrene Copolymer.
These two together can be combined with different types of hydrocarbons (e.g. mineral oil or different emollient esters) to form gels with different sensorial and physical properties. The resulted hydrocarbon gels can improve skin occlusivity (and reduce trans-epidermal water loss) and they are also excellent to form suspensions.
It's the acronym for Butylated Hydroxy Toluene. It's a common synthetic antioxidant that's used as a preservative.
There is some controversy around BHT. It's not a new ingredient, it has been used both as a food and cosmetics additive since the 1970s. Plenty of studies tried to examine if it's a carcinogen or not. This Truth in Aging article details the situation and also writes that all these studies examine BHT when taken orally.
As for cosmetics, the CIR (Cosmetic Ingredient Review) concluded that the amount of BHT used in cosmetic products is low (usually around 0.01-0.1%), it does not penetrate skin far enough to be absorbed into the bloodstream and it is safe to use in cosmetics.
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| what‑it‑does | emollient | viscosity controlling |
| irritancy, com. | 2, 1 |
| what‑it‑does | viscosity controlling |
| what‑it‑does | viscosity controlling |
| what‑it‑does | antioxidant | preservative |