aveeno positively radiant daily moisturizer

Regarding skin pigmentation, the soybean extract works by hindering melanosome transfer, meaning it blocks the melanin pigment from traveling up to the surface of the skin and becoming visible there. A sunscreen with BP-3 is definitely better than no sunscreen. However, if you find a formula that you love and contains BP-3, we do not think that you should throw it away. Overall, BP-3 is probably our least favorite sunscreen agent and we prefer sunscreens without it. It can be used in concentrations of up to 10% in the EU and up to 6% in the US. On the up side, sunscreens are pretty well regulated in several parts of the world, and BP-3 is considered ' safe as used' and is an allowed sunscreen agent everywhere.

If that was not enough, Wikipedia claims that BP-3 is nowadays the most common allergen found in sunscreens, and the always-trustworthy smartskincare writes that ' have been shown in some studies to promote the generation of potentially harmful free radicals'. In fact, a 2004 follow-up study to examine the estrogenic effect of sunscreens when used topically on the whole body found that 'the endogenous levels of reproductive hormones were unaffected' (even though BP-3 could be detected both in plasma and urine, so its absorption is no doubt too good). Estrogenic activity was confirmed only in-vitro (in test tubes) and when taken orally by lab animals, and not when used topically as you would normally. Pentaerythrityl Tetra-Di-T-Butyl HydroxyhydrocinnamateĪnother concern of BP-3 is that it shows some estrogenic activity, though it's probably not relevant when applied topically to the skin.

Aveeno positively radiant daily moisturizer