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(3) qualitative (i.e., presence or absence) and quantitative (i.e., amounts) requirements for many dietary nutrients, particularly protein, certain AAs (arginine, taurine, methionine, and cysteine, as well as NEAAs), 3 and 6 PUFAs, and vitamins (e.g., vitamin A and niacin)

The same 2013 review says topical vitamin C is best applied after exposure to UV light, not before

Obstet Gynecol Clin North Am 50:8999

Beyond these defining features, a growing body of clinical and biochemical evidence indicates that PCOS is frequently accompanied by chronic low-grade inflammation, metabolic stress, and increased cardiometabolic risk [3, 4]