They found that " the natural retinoids ROL and RAL do have a good tolerance profile, in contrast with the irritating potential of RA", meaning retinal is an awesome alternative if you have irritation and flaking issues with prescription products, such as Retin-A. Anyway, it doesn't matter if it reflects or absorbs, Titanium Dioxide is a pretty awesome sunscreen agent for two main reasons: it gives a nice broad spectrum coverage and it's highly stable. This long-named, polymer molecule (big molecule from repeated subunits) is a helper ingredient that's good at emulsifying and stabilizing oils into water-based formulas. Great natural moisturizer and skin-identical ingredient that plays an important role in skin hydration and general skin health.

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. it does not penetrate skin far enough to be absorbed into the bloodstream and it is safe to use in cosmetics. Meet the recommended dermatologist regimen to be used in conjunction with acne medications and treatments.The product was added next to the standard anti-acne regimen of 1,709 patients for 90 days and the study concluded that the formula was both very well tolerated as well as effective next to other standard anti-acne medications such as benzoyl peroxide and antibiotics. It can be produced from most vegetable oils (in oils three fatty acid molecules are attached to glycerin instead of just one like here) in a pretty simple, "green" process that is similar to soap making. It's definitely one of the best UV-filter agents we have today, especially in the US where new-generation Tinosorb filters are not (yet) approved.

I’m in my mid-twenties and while my days of acne and breakouts aren’t fully behind me, aging is also becoming a top concern for me. The generic term for nice smelling stuff put into cosmetic products so that the end product also smells nice. Depending on your hair type, it can be a bit difficult to wash out and might cause some build-up (btw, this is not true to all silicones, only the non-volatile types). It is a polymer (created from repeating subunits) molecule and has different molecular weight and thus different viscosity versions from water-light to thick liquid.

One more thing: the water used in cosmetics is purified and deionized (it means that almost all of the mineral ions inside it is removed). Synovea - X-Pressin - Retinaldhéyde - Avène Thermal Spring WaterAvene Thermal Spring Water (Avene Aqua).

A 2009 review article about the safety of nanoparticles summarizes this, "to date, in-vivo and in-vitro studies have not demonstrated percutaneous penetration of nanosized particles in titanium dioxide and zinc oxide sunscreens". An emollient and natural moisturizer that can be found also in the sebum (oily stuff our skin produces). c. puts it in his awesome blog post, squalane's main things are " emolliency , surface occlusion, and TEWL prevention all with extreme cosmetic elegance". A physical/inorganic sunscreen with pretty broad spectrum (UVB and UVA II, less good at UVA I) protection and good stability.The main concern with nanoparticles is that they are so tiny that they are absorbed into the skin more than we want them (ideally sunscreen should remain on the surface of the skin). So where does our current molecule, Retinal, aka Retinaldehyde fit into the family (btw, here is a nice visual family tree about who is who)? Interestingly, in both groups, the results were less significant at week 44, so it might be a good idea to have a retinoid break from time to time?