★★★★★
My skin looks incredible after taking vitamin A in the form of retinyl palmitate. I have taken the liquid form of this for several weeks, starting with high doses of 150k-200k IUs per day, and now experimenting with lower doses of 15k-50k IUs, taken every few days. Great results for hair too. Never seen anything have such a drastic impact. Taken orally, you also won't have the sun sensitivity you get with topical vit A products (rentinol, etc.). In fact, it seems my skin actually tolerates the sun better than usual now. Glowing, even color and texture, and even two moles on my face (that grew back over 20+ years after being removed by a dermatologist) are shrinking. Vit A kills off pathogens, and not just those affecting skin but also all pathogens infecting all mucous membranes (GI tract, sinuses, etc.).
I'm using "micellized" retinyl palmitate now, but I may try retinyl palmitate capsules as well, which are super-inexpensive.