Just Antioxidant Serum SPF 30+
Highlights
Key Ingredients
Skim through
| Ingredient name | what-it-does | irr., com. | ID-Rating |
|---|---|---|---|
| C12-15 Alkyl Benzoate | emollient, antimicrobial/antibacterial | ||
| Ethylhexyl Stearate | emollient | ||
| Ethylhexyl Dimethyl PABA | sunscreen | icky | |
| Ethylhexyl Salicylate | sunscreen | 0, 0 | |
| Butyl Methoxydibenzoylmethane | sunscreen | goodie | |
| Terephthalylidene Dicamphor Sulfonic Acid | sunscreen | goodie | |
| Tocopheryl Acetate | antioxidant | 0, 0 | |
| Fragrance/Parfum | perfuming | icky | |
| BHT | antioxidant, preservative |
Revox Just Antioxidant Serum SPF 30+Ingredients explained
An often used emollient with a light and silky feel. It's very mild to both skin and eyes and spreads nicely and easily. It's often used in sunscreens as it's also an excellent solvent for sunscreen agents.
A clear, almost colorless (or slightly yellowish) oily liquid (an ester to be precise) that's used as a medium spreading emollient. It gives skin a nice and smooth after-feel and it's very good at reducing oiliness or greasiness coming from other heavier oils in the formula.
Ethylhexyl Dimethyl PABA is a chemical sunscreen agent that protects in the UVB range (290-320 nm) with a peak absorbance at 312nm. Other than that, we struggle to write anything positive about this guy, as it is photo unstable (looses 10% efficacy in 20 mins and 50% in 85 mins), not an unfrequent allergen in sunscreens and shows some endocrine effect in animal studies.
All this does not mean that it is not considered safe as used, it is (and is approved up to 8% in the EU and US and up to 3% in Japan), but we do think that there are plenty of other and better UV filters out there.
A colorless to light yellowish oily liquid that works as a UVB (280-320nm) sunscreen filter with a peak absorbance at 306 nm. It's not a strong filter in itself, it's always used in combination with other sunscreen agents to further enhance the SPF and to solubilize other solid UV filters.
It has a good safety profile and is allowed to be used at a max concentration of 5% both in the US and in Europe (10% is allowed in Japan).
The famous Avobenzone. It is a special snowflake as it is the only globally available chemical sunscreen agent that provides proper UVA protection (in the US, new generation sunscreen agents are not approved because of impossible FDA regulations). It is the global gold standard of UVA protection and is the most used UVA sunscreen in the world.
It gives very good protection across the whole UVA range (310-400 nm that is both UVA1 and UVA2) with a peak protection at 360 nm. The problem with it, though, is that it is not photostable and degrades in the sunlight. Wikipedia says that avobenzone loses 36% of its UV-absorption capacity after just one hour of sunlight (yep, this is one of the reasons why sunscreens have to be reapplied after a few hours).
The cosmetic's industry is trying to solve the problem by combining avobenzone with other UV filters that enhance its stability (like octocrylene, Tinosorb S or Ensulizole) or by encapsulating it and while both solutions help, neither is perfect. Interestingly, the combination of avobenzone with mineral sunscreens (that is titanium dioxide and zinc oxide) is not a good idea. In the US, it is flat out prohibited as avobenzone becomes unstable when combined with mineral sunscreens.
As for safety, avobenzone has a pretty good safety profile. It counts as non-irritating, and unlike some other chemical sunscreens, it shows no estrogenic effect. The maximum concentration of avobenzone permitted is 5% in the EU and 3% in the US.
A L'Oréal-group exclusive sunscreen agent commonly called Mexoryl SX. As opposed to most sunscreen agents, it is water soluble and protects in the UVA range with a peak absorbance at 345 nm.
It’s the most commonly used version of pure vitamin E in cosmetics. You can read all about the pure form here. This one is the so-called esterified version.
According to famous dermatologist, Leslie Baumann while tocopheryl acetate is more stable and has a longer shelf life, it’s also more poorly absorbed by the skin and may not have the same awesome photoprotective effects as pure Vit E.
Exactly what it sounds: nice smelling stuff put into cosmetic products so that the end product also smells nice. Fragrance in the US and parfum in the EU is a generic term on the ingredient list that is made up of 30 to 50 chemicals on average (but it can have as much as 200 components!).
If you are someone who likes to know what you put on your face then fragrance is not your best friend - there's no way to know what’s really in it.
Also, if your skin is sensitive, fragrance is again not your best friend. It’s the number one cause of contact allergy to cosmetics. It’s definitely a smart thing to avoid with sensitive skin (and fragrance of any type - natural is just as allergic as synthetic, if not worse!).
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 | antimicrobial/antibacterial |
| what‑it‑does | emollient |
| what‑it‑does | sunscreen |
| what‑it‑does | sunscreen |
| irritancy, com. | 0, 0 |
| what‑it‑does | sunscreen |
| what‑it‑does | sunscreen |
| what‑it‑does | antioxidant |
| irritancy, com. | 0, 0 |
| what‑it‑does | perfuming |
| what‑it‑does | antioxidant | preservative |