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Other (less serious) concerns are if EGF can properly penetrate the skin (as it is a medium-sized, polar molecule, so a special delivery system is probably needed), if it can affect collagen synthesis (or just works on the surface plumping up only the upmost layers of the skin) and if it has beneficial effects at all when used in isolation versus when used in a "conditioned media" that contains lots of growth factors resembling the synergistic balance found in the skin
Do not use during pregnancy or breastfeeding without medical advice
This improves the absorption and effectiveness of both NAC and liposomal Glutathione
It is a plant-derived ingredient with skin conditioning properties
Vitamin C is one of the major components of lemon and is known to exhibit anti-pigmentary effects (1)
And wanted to double check with you about COSRX BHA Blackhead Power Liquid that contains 4% natural BHA component of Betaine Salicylate which is (according google info) twice as gentle as salicylic acid, i.e
