So luckily my skin loves niacinamide, sometimes my routine has had 80% of products with niacinamide in them. But of course Korean brands tend to just put niacinamide in everything even if it's not a "niacinamide centered product" so it's hard to say what the total concentration there was. At the moment my routine is:
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Skin1004 centella cleanser
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Eqqalberry swimming pool toner
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Skin1004 tone brightening ampule *
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Skin1004 centella soothing cream *
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Lelu botanical SPF 50 sunscreen (local brand in my country) *
*has niacinamide
I've been wanting to try something a little stronger than the skin1004 serum for my dullness and hyperpigmentation and this Jumiso line has come up a lot in recommendations. While I've never had a reaction to niacinamide, obviously I'm not actually thinking of replacing my whole routine, I think I'll get the 10% serum and then if it works well for me I'll try the 20% serum. But would this full routine would be too much? If someone were to very slowly introduce each product, is there a threshold for how much niacinamide human skin can tolerate? out of curiosity.
Also has anyone had any experience with this brand?
by Metromanwhy