Hello, Shampoo : N7000 is a shampoo base made from SLS/SLES which is
สารชะล้าง The sulfate group may be harsh on the scalp for beginners. Recommended to use The sulfate-free ready base is
Sulfate Free Shampoo Base instead of 1,6 ingredients
2 ingredients. for what purpose Because it does not have any benefit to the hair. In case of wanting to moisturize the scalp as well
Urea Consider using a lower rate (2% is enough)
Tried to share Let's use it to look black. It seems to be a bit too black. And the formula is not creamy at all. After using it, it stings my hair behind my neck again. I don't know which substance
cut 2, 9, 10 from the formula and add
Ceteareth-20 3% in the formula. Others no problem but
Lactic Acid added in the last step. Only after getting the cream, add it to the cream and blend together. Allergy problems The only way to test is to test each ingredient separately by diluting it at the rate used. (for example
Lactic Acid If you want to use it in a 4% formulation and are unsure if you are allergic or not, dilute it in
น้ำกลั่น 4%, then tested. patch-test on the skin) because it cannot be predicted that Will I be allergic to any ingredient?