Whether peptides and glycolic acid can be mixed depends on the delicacy of the skin care formula. Peptides have a variety of skin care effects, or can help skin repair and promote collagen production; glycolic acid is a fruit acid, which can rejuvenate and improve skin quality.

However, when the two are mixed, careful consideration is required. Glycolic acid is acidic. If peptides are sensitive to pH, changes in pH after mixing, or changes in peptide structure will damage their efficacy.

And different peptides have different characteristics and stability. Some peptides lose their activity in acidic environments or undergo reactions such as hydrolysis.

If you want to mix the two, it is advisable to conduct a small-scale test first. A small amount of peptide and glycolic acid can be mixed according to the proposed ratio to observe whether there are physical changes such as precipitation and discoloration.

It is also necessary to pay attention to the pH of the mixture, which can be detected with the help of pH test paper or professional instruments. If the pH deviates from the stable range of peptide, the formula needs to be adjusted, or buffers need to be added to maintain stability.

In addition, professional skin care formulators or experts in related fields can be consulted. With their professional knowledge and experience, they can provide scientific advice to ensure the safety and effectiveness of the mixture.

In short, it is not impossible to mix peptide and glycolic acid, but it needs to be carefully tested and considered to achieve the ideal skin care effect and keep the skin safe.