Biolage Hydra Source Serum 90ml is a lightweight, water-based scalp and hair serum designed to bring lasting hydration to dry, thirsty hair. Infused with aloe vera and fermented hyaluronic acid, the formula helps to nourish the scalp while delivering moisture along the lengths, leaving hair feeling soft, supple and comfortably hydrated. The texture feels fresh and clean to the touch, making it a reassuring choice for those who prefer weightless care that doesnt leave residue. Suitable for all hair types, including colour-treated hair and sensitive scalps, it fits easily into an existing haircare routine as a targeted hydration step.

Use this product after cleansing, on towel-dried hair, by parting the hair to expose the scalp and applying small drops directly where needed. Gently massage into the scalp, then smooth through the mid-lengths and ends before styling as usual. The serum may help hair look healthier and more conditioned over time, supporting a smoother, more manageable finish while giving the scalp a comfortable, moisturised feel.