As we wrote in our lengthy retinol description the problem is that the conversion is not terriblyeffective. The evidence that RP is still an effective anti-aging ingredient is not very strong, in fact, it's weak. Dr. Leslie Baumann in her fantastic Cosmetic Dermatologybook writes that RP is topically ineffective.

As for linoleic acid and the skin, LA is a really important little guy found naturallyin our skin. It is the most abundant fatty acid in the epidermis and it serves as a structural precursor for important skin lipids called ceramides. Knowing this, it will not come as a surprise that Linoleic acid has a central rolein the structure and function of stratum corneum permeability, aka healthy skin barrier.LA deficiency leads to an impairedmore permeable skin barrier and the topical application of LA-rich sunflower oil can fix this issue rapidly (while oleic-rich olive oil did not have the same barrier repairing effect). Essences of life Coconut Milk shampoo & hair conditioner collection helps hydrate damaged hair to smoothness to reveal its natural beauty.The best way to keep your hair from frizzing is to keep it moisturized. We have product recommendations below, but you can also help your hair by:

We think that the truth lies somewhere in the middle, and we agree with Dr. Baumann's conclusion: " sufficient evidence to establish a causal link between RP and skin cancer has not been produced. Nor, I’m afraid, are there any good reasons to recommend the use of RP". We would addespeciallyduring the day! Known for fantastic frizz control, this shampoo and conditioner combo will nourish your dry hair to make it soft and manageable. It’s also pH-balanced and color-safe! Use a Hair MaskWhat's more, the anti-aging effectiveness is not the only questionable thing about RP. It also exibits questionable behaviour in the presence of UV light and was the center of a debate between the non-profit group, EWG (whose intentions are no doubt good, but its credibility is often questioned by scientists) and a group of scientists and dermatologists lead bySteven Q. Wang, MD, director of dermatologic surgery at Memorial-Sloan Kettering Cancer Centre. Once a week, use this hydrating hair mask for dry and damaged hair to help restore, repair, & smooth frizzy hair. Treat with Hydrating Oil Rinsing your hair in cold, not hot, water. Cold water keeps the follicles from opening up, and as a bonus, it can give you seriously shiny strands. So, argan oil comes from the kernel of the argan fruit that comes from the argan tree that grows only in Morocco. The tree is slow growingand getting the oil is a hard job. The traditional process is that the ripe argan fruits fallfrom the tree, then goats eat them up and poop out the seeds. The seedsare collected and smashed with a stone to get the kernels inside. This part is the hard one as the seeds have extremely hard shells. Once the kernels are obtained, the oil is pressed out from them (the kernels contain about 50% oil).