The best hair repair serum targets frizz, weakness, and internal damage—not just surface dryness. The 2.Oh! Hair Repair Serum is formulated for frizzy, unmanageable, and breakage-prone hair, enriched with Active Repair Catalysts to repair internal fiber damage, hydrolyzed keratin to reinforce protein structure, and argan oil to smooth and soften.

It works from within to strengthen weakened areas, seal split ends, and restore elasticity for softer, smoother, more manageable hair. Unlike regular serums that only coat the surface, this one repairs deeply over time—making it ideal for chemically treated, heat-styled, or damaged hair as the 4th step in the Healthy Hair Ritual.

Use the 2.Oh! Hair Repair Serum on mid-lengths to ends of towel-dried or dry hair. Start with just a pea-sized amount; its concentrated formula goes a long way in controlling frizz, smoothing flyaways, and helping protect against breakage. It's especially effective when layered after the Leave-In Conditioner, which protects and detangles, while the serum focuses on deep repair.

For very damaged or frizzy hair, apply daily. As hair becomes healthier and more manageable, switch to applying only on the ends to maintain strength, shine, and split-end protection.

The best hair repair for damaged hair is a complete ritual, not just one product. For truly damaged, frizzy, and breakage-prone hair, the 2.Oh! Hair Repair Serum delivers essential protein support with hydrolyzed keratin, while Active Repair Catalysts repair internal stress points and argan oil restores shine and smoothness.

Pair it as step 4 in the Healthy Hair Ritual: Shampoo → Mask → Leave-In Conditioner → Hair Repair Serum. While the leave-in guards against external damage, the serum actively repairs and strengthens—perfect for hair that needs both immediate smoothing and long-term resilience.

To quickly revive damaged hair, use a dual approach: protect + repair. The 2.Oh! Leave-In Conditioner protects and smooths frizz while the 2.Oh! Hair Repair Serum works below the surface to rebuild weakened areas with hydrolyzed keratin and repair catalysts.

This powerful combo targets frizz, split ends, and breakage instantly while improving texture and strength over time. For dry, frizzy, unmanageable hair, applying both after every wash creates soft, healthier-looking strands even as deeper repair continues.

Yes, the 2.Oh! Hair Repair Serum is lightweight and safe for daily use—especially for frizzy, unruly, or damaged hair. Apply a tiny amount to mid-lengths and ends every day to seal cuticles, control frizz, and prevent split ends.

Daily use strengthens and smooths hair, and is especially helpful if your hair is prone to damage from heat styling, environmental stress, or color treatments. The serum repairs over time, while the leave-in conditioner protects, making them a powerful daily duo for all hair types—especially those struggling with damage or dryness.