An apple cider vinegar (ACV) rinse helps balance the pH of your scalp and hair after using a natural shampoo bar, especially if you live in a hard water area or are in the transition period.

Most natural shampoo bars (made via saponification) are mildly alkaline (pH >7, while your scalp and hair prefer a more acidic pH (around 4.5–5.5). An alkaline environment can temporarily raise the hair cuticle, making it feel rough or tangled.

🧪 Why pH matters:

Balancing your hair’s pH:

• Smooths the cuticle for shinier, softer hair

• Helps detangle and reduce frizz

• Supports a healthy scalp barrier

• Can reduce itching, dryness, or residue during the adjustment phase