Head to Head
K18 HeatBounce Conditioning Heat Protectant Spray vs The Ordinary Multi-Peptide + Copper Peptides 1% Serum, 30ml
A side-by-side comparison of specs, price, and where each one wins.
Specs, side by side
| Feature | K18 HeatBounce Conditioning Heat Protectant Spray | The Ordinary Multi-Peptide + Copper Peptides 1% Serum, 30ml |
|---|---|---|
| Price | $69.00 | $39.50 |
| Heat protection | Rated to 450°F / 232°C | — |
| Leave-in conditioning | Lightweight system | — |
| Finish | Bounce/movement focus | — |
| Price | $69 CAD | — |
| Copper peptide complex (copper tripeptide-1 / GHK-Cu) | — | 1% total complex, individual GHK-Cu level undisclosed |
| Matrixyl-family peptides (palmitoyl tripeptide-1, palmitoyl tetrapeptide-7, palmitoyl tripeptide-38) | — | Undisclosed |
| Acetyl hexapeptide-8 and dipeptide diaminobutyroyl benzylamide diacetate | — | Undisclosed |
| Multi-molecular-weight hyaluronic acid complex + amino acids | — | Undisclosed |
| Lactococcus ferment lysate (probiotic complex) | — | Undisclosed |
K18 HeatBounce Conditioning Heat Protectant Spray
A true high-heat protectant with unusually pleasant leave-in conditioning, priced at roughly triple what rated drugstore protectants charge for the same temperature spec.
Best for: Frequent hot-tool stylists, the daily flat-iron and curling-wand crowd, who want maximum-rated protection wrapped in a weightless conditioning spray they'll enjoy using.
Read the full review →The Ordinary Multi-Peptide + Copper Peptides 1% Serum, 30ml
The cheapest serious copper peptide serum on the shelf, priced so that a real three-month trial costs less than one bottle of the competition.
Best for: Anyone who wants to try copper peptides without spending three figures, and people building a simple PM routine aimed at firmness, fine lines and texture over a 3 to 6 month horizon.
Read the full review →