My scalp reacts easily to new products — how should I test this shampoo?

Even mild, sulphate-free formulas can trigger reactions in people who are sensitive to specific botanical extracts, fragrance components, or preservatives. Before using the shampoo on your whole scalp, apply a small amount behind the ear or on the inner forearm, leave for a few minutes, then rinse. Wait 24 hours; if no redness, itching, or irritation appears, proceed with a first wash using a small amount. For the first few uses, consider diluting the shampoo slightly with water and limiting scalp contact time to 1–2 minutes. Avoid eye contact — rinse immediately if product gets in the eyes. If any irritation, burning, or allergic reaction develops, discontinue use and consult a dermatologist. This advice applies to any new cosmetic product, not only this shampoo.