Xu YQ, Li A, Li X, Deng X, Gao XJ
Tretinoin, a prescription vitamin A derivative, has been called the most potent and certainly the most widely investigated retinoid for photoaging therapy by researchers in a 2006 review.49 And a more recent 2022 review notes that studies on tretinoin consistently find it to be efficacious in improving [the] clinical appearance of photoaging.50 And many nonprescription ingredients, like niacinamide (for melasma),51 vitamin C (for wrinkles),52 and hyaluronic acid (for dry skin), have demonstrated positive outcomes in studies.53 Some of our favorite online dermatology options that weve reviewed are Curology, Agency, Prose, and Musely
Anti-inflammatory, antioxidant and antihepatotoxic effects of Spirulina platensis against d-galactosamine induced hepatotoxicity in rats
This latter option may be more tricky, however
Dipeptidyl peptidase-4 impairs insulin signaling and promotes lipid accumulation in hepatocytes
Tinted sunscreens lead to a smaller amount of the product applied on the face