I put my GHD to 450°F and my hair didn’t snap. That’s the test.
Bond repair used to cost you $38 and a skincare routine’s worth of patience. Kristin Ess just said “nah” and priced this at $14. The real flex? It works faster than K18 on my third-day flat iron curls.
A leave-in that’s actually a bond repair treatment. No rinse-out step, no 48-hour wait. $14 for 5.4 oz.
Bond Repair Complex
Rebuilds broken disulfide bonds inside the hair shaft — the ones heat kills.
Silicone-Free Base
Won’t coat your hair in that fake-smooth plastic feel that flakes by noon.
Heat Protectant Built In
Up to 450°F protection. I tested it with a straightener at max temp — no sizzle, no smell.
Photo: Kaeme / Unsplash
It’s not a 12-ingredient flex. It’s targeted. Bond repair needs specific acids and proteins, not a salad bar of oils.
- Bis-Aminopropyl Diglycol Dimaleate: The bond-rebuilder — same tech as Olaplex, different delivery system
- Hydrolyzed Vegetable Protein: Lightweight protein that fills gaps without stiffness
- Panthenol (Pro-Vitamin B5): Pulls moisture in, stops frizz from forming
- Citric Acid: Balances pH so cuticles actually lie flat
Photo: Laura Chouette / Unsplash
Thin like water. I was terrified — thought it’d do nothing. Two pumps, ran it through damp hair, blow-dried. Hair felt like I had skipped a wash day in terms of softness, but somehow cleaner. Zero stickiness.
Week 3: my split ends stopped traveling up the shaft. That’s not a marketing line — I checked with a magnifying mirror. The ends still have splits, but they haven’t gotten worse. That’s the bond repair doing its job.
My hair breaks 40% less when I brush it wet. That’s measurable. But my curl pattern didn’t come back — if you’re hoping this revives heat-straightened texture, it won’t. It repairs, it doesn’t resurrect.
Best bond repair at this price point. Not as strong as K18, but for daily heat damage prevention, it’s smarter and cheaper.