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From what I know caused by วิตามินซี has a slightly acidic pH. When vitamin B3 is acidic, it combines with วิตามินซี may be created as a new substance that called niacin, which is not suitable for use May cause allergic reactions or others, this one is not sure, but if using วิตามินซี with a neutra...

The story of Niacinamide Hydrolysis reaction becomes Niacin Under acidic pH, refer to this study https://jpharmsci.org/article/S0022-3549(15 )33604-2 /pdf He said 10% solution Niacinamide at heating 120c x 20 min Not found Niacin Happens, another setting at pH 2 + 90c takes 75 hours to find Niacina...

I would like to express my opinion from what I have asked the team about this - forbidden to use Niacinamide in combination with วิตามินซี in the formula or in the same product. because of the group Vitamin C Either way, it can bind to Vitamin B3 is formed as a new substance. which causes the origi...

Because there are many different data states that do not use Niacinamide together with วิตามินซี in the formula or in the same product. But if the formula is separated into 2 products but applied to the skin on top of each other like this Niacinamide and วิตามินซี will it be cleared? Thank you.

Thank you very much I'll try adjusting it again.

I would like to adjust the formula again as listed below -------------------------- ---------------------------------------------------- ---- Safe-B3 ™ ( Vitamin B3, Niacinamide ) = 8% GlucoBright™ ( Acetyl glucosamine ) = 4% MSH White™ ( Undecylenoyl phenylalanine ) = 2% Ume Extract (Anti -Glycat...

Interfere with the R&D team to help check the ingredients listed below. give a little The purpose is to want a serum/lotion to whiten skin that can reduce the blood, wrinkles. Reduce oiliness a bit, prevent acne in an All in one model Focus on full dosage ingredients. most concentrated Because there...