Sodium hydroxide
| INCI Name | Effects On | Natural Source | |
| Face Care | Hair Care | ||
| Sodium hydroxide | pH Adjustment, Helps emulsions stay consistent and safe for use, No Direct Skin Benefit. | pH Balancing, Used in Relaxers, Present in trace amounts to fine-tune product pH without irritating skin or scalp. | Sodium hydroxide (NaOH), also known as lye, is not found naturally in a pure form. However, its constituent ions, sodium and hydroxide, are found in natural substances. It can be manufactured through various processes, including the electrolysis of brine (saltwater). Additionally, sodium hydroxide can be derived from the ash of burned wood, and it can also be produced from trona. |