Red and blue light scalp massage comb: Our scalp massage brush uses 850 nm red and blue light waves to effectively repair the head, activate hair growth, improve the self-cleaning ability of the scalp, control oil and relieve itching. This red and blue light wave can act directly on 3-5 mm deep hair follicles, awaken healthy hair roots, regulate the water and oil balance of the scalp and improve the scalp environment. Scalp and hair care 2-in-1: Our head massage brush can effectively promote the health of the scalp and hair. The vibration massage function helps to relax the scalp, relieve fatigue and improve sleep. Absorbed directly by the scalp and nourishes your hair and hair roots. Improved essence cabin: Our scalp massage brush has a 6 ml liquid guide cabin in the middle where you can fill your favourite essential oil, and it is equipped with 72 round comb teeth to strengthen the handle and allow you to massage your scalp. The even and easy application of essential oils minimises waste of essential oils and prevents them from becoming different. Super long battery life: Our scalp massage brush is equipped with a large capacity battery and has a super long battery life that fully meets your usage requirements. The charging time is very short and full charging only takes less than 3 hours, so you can use it conveniently at any time. At the same time, this scalp massage brush can be used for up to 10 days when fully charged. Note: 10 days means it is used for 10 minutes every day, and it can be used continuously for 10 days. Timing design: when you turn on the head massage brush, the massage is automatically set to 10 minutes and automatically switched off when the time has elapsed. You can choose from different massage modes to suit your individual needs. Each mode has a unique intensity and rhythm to relieve fatigue and promote blood circulation.