Biolage ScalpSync Oil Balancing Serum - Absorbs Excess Oil, For Oily Scalp, Soothed and Hydrated Scalp for up to 72 hours, with Fermented Tea Blend, Vegan & Paraben-Free

Who it's for

Choose an oil-balancing scalp serum when roots start looking greasy soon after wash day. Biolage ScalpSync serum is aimed at oily scalps and is suited to all hair types, with a drop format that targets the scalp instead of coating the lengths.

Use a scalp-first product when the goal is controlling oil where it begins. Biolage says the formula absorbs and reduces excess scalp oil and helps stop sebum from traveling down the hair strand in between washes, which can help hair keep a fresher look and feel.

When you'd use it

Apply the scalp serum right after washing and conditioning, while hair is towel-dried. The directions call for separating the hair to expose the scalp, placing a drop every inch, and massaging for one minute before drying as usual.

Make the serum part of wash day rather than a late fix once roots already feel slick. That use pattern fits shoppers who want oil control built into their routine instead of relying only on products applied to the hair after styling.

What makes it different

Reach for a scalp-focused formula when oily roots need control at the source. Biolage highlights a micro-dosed concentrate of fermented tea blend to absorb and reduce scalp oil while keeping the scalp soothed and hydrated for up to 72 hours.

Focus on placement as much as formula. The serum is meant to sit directly on the scalp, which separates it from products that mainly mask greasy lengths instead of addressing oil at the root area.

Good to know

Expect a lightweight feel rather than a heavy coating on the scalp. One reviewer notes that the serum absorbs quickly and made detangling easier after use, which supports the fresh-feeling, between-wash positioning.

Note a few practical details before using the bottle regularly. The serum comes in a 50 ml size, is made in Spain, and includes an eye-contact warning, so careful scalp placement matters during application.