Sebum, which is the hair's natural oil, has a pH (potential/power of hydrogen) Level of 4.5 to 5.5, which makes it slightly acidic.It is ideal for us to keep our hair at a 4.5 to 5.5 pH level. Not only is it healthy for our hair, but it helps to keep fungi and bacteria from our scalp.
we know that alkalis will open the cuticle, and acids will flatten it, Credit:
So Now With that said I check my hair products and most are in check ranging from 4-5 since I started the curly girl method.
Tresseme Natural conditioner is 4-5
Aphogee green tea 2.5-3
Hawaiian Silk 5
Aphogee 2 Min recon 5
Aphogee Deep Moisturizing shampoo 5-5.5* will be added
NOW with that said everything looks moisture/protein balanced. Do I need deep conditioner hmmmm.