An enzyme called tyrosinase is needed to create melanin (the pigment that causes the brown spots) and while several other skin lightening agents work to inhibit the synthesis of tyrosinase itself (like vitamin C or licorice), arbutin lets tyrosinase be and rather hinders the melanin-forming activity of the enzyme
And most importantly, which situations favor one over the other
J Am Acad Dermatol 67(4):630635 Kardaun SH, Sekula P, Valeyrie-Allanore L, Liss Y, Chu CY, Creamer D, Sidoroff A, Naldi L, Mockenhaupt M, Roujeau JC et al (2013) Drug reaction with eosinophilia and systemic symptoms (DRESS): an original multisystem adverse drug reaction
No se engane: caso voc encontre algum mdico receitando ou qualquer outra pessoa vendendo retatrutida, saiba que, neste momento, o produto em questo no tem qualquer chance de ser regular ou seguro
it doesn't change the potency of the three ingredients GLOW and KLOW have in common