A common question in the Matrixyl vs GHK-Cu discussion is whether researchers can stack these two compounds
The result of this elaborate, high-purity manufacturing process is L-glutathione in its directly bioactive, reduced form
& Smith, R.L
Antioxidant activity The possible antioxidant activity of glutathione is a third mechanism that adds to glutathiones depigmenting properties
Vials are supplied lyophilized at analytical purity for laboratory and research use only, not for human consumption
However, its good to know that maca extracts may have estrogen-like properties, so you shouldnt use these supplements if you have any hormone-sensitive conditions, such as endometriosis, breast cancer, uterine cancer, ovarian cancer, or uterine fibroids [23]