Olaplex, the cult-favorite brand known for its bond-building hair treatments, has introduced two new products specifically formulated for fine hair—marking a significant evolution in its best-selling No. 4 and No. 5 shampoo and conditioner duo.
Just months after releasing the No. 0.5 Scalp Longevity Treatment, Olaplex has launched the Fine Bond Maintenance Shampoo and Conditioner (£30 each, available at Olaplex.com), aimed at delivering volume without compromising hair health.
These new formulations replace heavier ingredients like amodimethicone—a silicone common in conditioning treatments—with lighter alternatives such as behentrimonium chloride, derived from rapeseed oil. According to Olaplex, over 50 ingredient changes have been made to tailor the formulas to the needs of fine-haired consumers.
Real-World Testing
To evaluate the efficacy of the new line, the products were tested over several weeks of regular use. Only the new shampoo and conditioner were used on wash days, with a double shampoo routine followed by a two- to three-minute conditioning phase. The hair was then blow-dried and styled as usual.
From the first wash, results were noticeable: hair felt lighter, more voluminous at the roots, and individual strands appeared fluffier and more buoyant. The formulas delivered on their promise to lift and add body, a key concern for those with fine or flat hair.
However, the trade-off came in reduced protection against damage. Compared to the original No. 4 and No. 5 formulas—rich in silicones and known for their reparative strength—this lighter variation left hair slightly more vulnerable to dryness and mid-length splits. While static was minimal, the reduced conditioning power may require supplementation.
Recommendation
Despite the slight drop in anti-damage performance, the overall verdict remains positive. The Fine Bond Maintenance duo provides a substantial boost in volume and manageability for fine hair, with the added bonus of lightweight feel. For best results, it’s recommended to pair the new formulas with Olaplex’s No. 3 Hair Perfector, a pre-shampoo bond-building treatment that adds strength and resilience.
In summary, the new Olaplex range successfully addresses the long-standing needs of fine-haired users seeking volume without heaviness—marking another bold move for the brand’s evolving portfolio.
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