Head to head
Leave-In Molecular Repair Hair Mask vs Rosemary Mint Scalp & Hair Strengthening Oil
K18 Leave-In Molecular Repair Hair Mask edges out Mielle Rosemary Mint Scalp & Hair Strengthening Oil, 7.8 to 7.2. It wins on results, formula and texture and feel, while the Rosemary Mint Scalp & Hair Strengthening Oil is stronger on value.
Benefit fingerprints
What each one does.
K18 Leave-In Molecular Repair Hair Mask
Mielle Rosemary Mint Scalp & Hair Strengthening Oil
Side by side
Every detail, compared.
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K18
Leave-In Molecular Repair Hair Mask
Highest score- Damage repair
- Split ends
- Smoothing
- Frizz control
- Scalp care
- Hair growth support
- Split ends
- Shine
- • Bleached, highlighted or chemically processed hair
- • Heat-damaged hair that breaks easily
- • Anyone who wants a fast, no-rinse repair step
- • Coily and curly hair or protective styles that need scalp oiling
- • Budget pre-wash scalp massages
- Quick routine: four minutes on towel-dried hair, no rinsing
- Patented K18PEPTIDE targets bleach, color, chemical and heat damage, per the brand
- Many bleached and chemically treated hair reviewers report noticeably stronger, softer hair
- Very affordable at about $10
- Multi-use: scalp massage oil, pre-wash treatment and split-end oil
- Pleasant cooling mint sensation that many users enjoy
- $75 for 50 ml is expensive
- Must go on unconditioned hair, which changes most wash-day routines
- Growth reputation rests on anecdotes, and the rosemary level is undisclosed
- Heavy castor and soybean oil base can weigh down fine hair
Affiliate links — we may earn a commission. How we make money
Affiliate links — we may earn a commission. How we make money
FAQ
Quick answers.
Which is better, Leave-In Molecular Repair Hair Mask or Rosemary Mint Scalp & Hair Strengthening Oil?
K18 Leave-In Molecular Repair Hair Mask edges out Mielle Rosemary Mint Scalp & Hair Strengthening Oil, 7.8 to 7.2. It wins on results, formula and texture and feel, while the Rosemary Mint Scalp & Hair Strengthening Oil is stronger on value.
Which is better value?
K18 Leave-In Molecular Repair Hair Mask works out to about $44.36 / oz and Mielle Rosemary Mint Scalp & Hair Strengthening Oil to about $5.01 / oz, based on typical non-Amazon retail prices when we last checked.
How do you score them?
Both are scored on the same five-factor rubric (results, formula & ingredients, texture & experience, value, community love), using the formula or specs, verified creator reviews, community consensus and value. Brands can’t pay for placement.