Cosmetics Formulation Development

Hello, I'm currently working on a toner formula. When I measure the pH, it's very acidic. So I want to know how to adjust the acid-base that can be used. Triethanolamine or can use Sodium Hydroxide if using Sodium Hydroxide is the solubility to water ratio?

Hello, can you use any kind of alkali? to adjust Recommend to check if What makes a formula acidic? and consider adjusting that accordingly Maybe it's better