Amika
Bust Your Brass Cool Blonde Shampoo
Amika Bust Your Brass Cool Blonde Shampoo — Delivers targeted brass-neutralizing cool purple pigments with nourishing ingredients, closely replicating Olaplex No.4P's toning effect at $11 less and a top 4.8 rating.
Best For
✓ A budget alternative to Olaplex No.4P Blonde Enhancer Toning Shampoo
Where to Buy
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The Original · 85% match
Olaplex
No.4P Blonde Enhancer Toning Shampoo
$34this dupe saves you $11 (32%)
The bond-building purple shampoo — Olaplex chemistry plus violet toning, the blonde-care benchmark.
How Bust Your Brass Cool Blonde Shampoo compares
Delivers targeted brass-neutralizing cool purple pigments with nourishing ingredients, closely replicating Olaplex No.4P's toning effect at $11 less and a top 4.8 rating.
See all dupes for No.4P Blonde Enhancer Toning Shampoo →Explore more
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Side-by-Side Comparison
Frequently asked questions
What is Amika Bust Your Brass Cool Blonde Shampoo a dupe of?
It's a 85% match dupe of Olaplex No.4P Blonde Enhancer Toning Shampoo ($34) — Delivers targeted brass-neutralizing cool purple pigments with nourishing ingredients, closely replicating Olaplex No.4P's toning effect at $11 less and a top 4.8 rating.
Is there a cheaper alternative to Amika Bust Your Brass Cool Blonde Shampoo?
Yes — Matrix Instacure Build-A-Bond Mighty Bonds Shampoo offers a similar result for $10 versus $23.
Where can I buy Amika Bust Your Brass Cool Blonde Shampoo?
It's available at Amazon — see the "Where to Buy" links above for current prices.