ghk-cu promotes collagen GHK GHK-Cu is one of the
Description
CoQ10 neutralizes free radicals, reducing their concentrations and minimizing their effect on collagen and elastin in the skin
Not only there are plenty of studies proving its efficacy for anti-aging but also many people online sharing their success stories using vitamin C based products
No water-based ingredients that might spoil and no preservatives needed

Some DIY beauty gurus address this issue by remaking the vitamin C serum weekly to ensure it is always fresh and delivers results

Most recipes, as expected, use ascorbic acid, because it is the most well known form of vitamin C
