Sorry so late, sis. I have been out building a dog pen in my backyard and then recovering bc I overdid it. For my scalp and hair, I've learned the stronger the better. IF I mix in water, it's 75% ACV, 25% water. But I actually prefer now to use the ACV straight. In fact, white vinegar has been very good to me too. I use them interchangeably. They're both acidic enough to balance my pH and they both will heal any burns. Once I started properly basing with Vaseline, I haven't had any scalp burns in years! HTH!