Olaplex Nº. 6 Bond Smoother: Leave-In Styling Treatment | Smooths, Conditions, & Strengthens | Frizz Control for Up to 72 Hours
Best for
Best overall
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$22.40
Updated Jun 27, 2026 · 1 min read
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the verified-purchase reviews we could gather, Olaplex's N°.6 Bond Smoother is the most broadly validated product in this pool, carrying a 4.7-star average over roughly 54,000 ratings. As a leave-in styling treatment rather than a rinse-out mask, reviewers most often praise it for frizz control, smoothing and heat-styling prep, with many describing it as a daily finisher that doubles as light repair.
What reviewers liked
- Very high verified-purchase rating (4.7) backed by an unusually large review base
- Leave-in format praised by buyers for frizz control and smoothing
- Marketed for all hair types including curly and coily
Where it falls short
- No independent lab or expert testing was available in our data to corroborate buyer claims
- A little goes a long way but the per-ounce cost is higher than drugstore masks
- Some reviewers note it's a styling smoother, not a deep structural repair treatment
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Across the verified-purchase reviews we could gather, Olaplex's N°.6 Bond Smoother is the most broadly validated product in this pool, carrying a 4.7-star average over roughly 54,000 ratings. As a leave-in styling treatment rather than a rinse-out mask, reviewers most often praise it for frizz control, smoothing and heat-styling prep, with many describing it as a daily finisher that doubles as light repair.
- 72-hr frizz control / humidity resistant
- Moisturizes
- Smooths
- Conditions
- Detangles
- Strenghtnes
- Repairs
- Reduces breaktage
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