Product pH List
This is a short-looking list but read carefully, for some brands or some lines within a brand, the pH range is for multiple products. Some brands are not forthcoming with their pH range, either by direct request or looking through safety data sheets. pH is given in a range because it may vary from batch to batch or product to product, though the pH needs to be in a specific range in most cases in order for preservatives to be effective and the product to be stable on the shelf. Hair is at its least vulnerable between about pH 4.5 and 6.5. Outside that range, it is more vulnerable to damage. Lower pH products don't necessarily force cuticles to "close" - for some people the opposite can happen - hair-swelling in very-low pH can cause cuticles to pop up. It's likely safe to keep products in this range if you have delicate, breakage-prone or damaged hair. If there is a product you are interested in, leave a comment. I won't post the comment, but I will try to look up...