References: [1] KAI FU
Similar to retinol, collagen and glutathione offer unique benefit, making it hard to compare them as it depends on your skin goals
Usually one is more than enough to clean but it is always good to have an extra in case you drop it
Being a defined, pure synthetic compound, Epithalon offers greater consistency, purity, and reproducibility in research settings compared to the natural bovine extract
Again, the loss of correlations in the pathway metabolite may be lost in patients due to illness-related, and also perhaps treatment influences, on 5-HIAA, since the TRP5-HIAA correlation is appears weakened in patients (Yao et al., 2010a)
This master antioxidant is scientifically linked to promoting skin clarity reducing hyperpigmentation and combating oxidative stress for a visibly brighter more even complexion