When dealing with a sensitive scalp, choosing gentle formulations from Kerastase and Aveda is crucial. Opt for products labelled as hypoallergenic or designed for sensitive scalps, as they tend to be milder and less likely to irritate. Avoid harsh chemicals and opt for natural, soothing ingredients. Limit hair washing frequency, apply products gently, and ensure thorough rinsing. If sensitivity persists, consult a dermatologist for personalized advice and to rule out any underlying scalp conditions.