Nutrients 14, 328
It can cause different usage of nutrients where maybe it's suboptimal in certain cases if you're just eating lots of carbs at individual meals, and that is why I definitely recommend balanced meals that always have some protein and fiber, and that usually mitigates the concern
10.1021/acsami.0c14046 61 WangC.CaoF.RuanY.JiaX.ZhenW.JiangX
Variation is normal because skin thickness, sun history, and sleep patterns differ, even when two people use the same bottle
The main practical cautions are its blue-green color (which can tint formulations) and formulation incompatibility with certain other actives notably strong direct-acid vitamin C and high concentrations of exfoliating acids, which can destabilize the copper complex
OTHER INGREDIENTS Thiamine (Vitamin B1), Riboflavin (Vitamin B2), Niacinamide (Vitamin B3), d-Panthenol (pro-Vitamin B5), Pyridoxine (Vitamin B6), Folic Acid (Vitamin B9), Ascorbic Acid (Vitamin C), Vitamin A, Vitamin D, Levocarnitine, Dextrose