Plantscription ™ Anti-aging Serum is clinically proven to have 88 % of the visible wrinkle - reducing power of a leading prescription wrinkle ingredient without the challenging unintended effects of photosensitivity, skin shedding, burning, stinging, redness, dryness, flaking and itching. (thefashionablehousewife.com)
I agree buckwheat is wonderful, but there is a compound in buckwheat grass called fagopyrin which can cause photosensitivity. (nutritionfacts.org)
Biossance Squalane + Phyto Retinol Serum, $ 78: The retinol that you typically see in anti-aging serums can cause biochemical changes at the cellular level, and it increases photosensitivity which accelerates aging and development of skin tumors. (blog.bulletproof.com)