K18 Leave-In Molecular Repair Hair Mask
Peptide Hair Treatment Mask for Bleach, Color, Chemical + Heat Damaged Strands - Immediate + Lasting Damage…
Price as of 2026-06-20. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Buyers who prioritize quality over price in hair masks
- •Risk-averse buyers — 9,607+ reviews give a highly reliable picture
- •You're on a tight budget — $49 above the category average of $26
- •Moroccanoil Intense Hydrating Mask offers a better rating (4.6/5) at a similar or lower price ($46)
- •MATRIX Brass Off Color Depositing Neutralization Hair Mask — 60% cheaper at $30 (Score B)
- •Amika soulfood nourishing mask — higher rated at 4.7/5 ($36)
📊 Based on data analysis of 94 products in this category.
Mubboo Score: B-
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other hair masks
Computed from live Amazon rating, review count, and price across 94 hair masks · last refreshed 2026-06-20.
How It Compares
This Product K18 Leave-In Molecular Repair Hair Mask | Most Popular Moroccanoil Intense Hydrating Mask | Best Rated Amika soulfood nourishing mask | Best Value MATRIX Brass Off Color Depositing Neutralization Hair Mask | |
|---|---|---|---|---|
| Price | $75 | $46 | $36 | $30 |
| Rating | 4.5/5 | 4.6/5 | 4.7/5 | 4.3/5 |
| Reviews | 9,607 | 19,156 | 8,188 | 5,674 |
| Mubboo Score | B- | B+ | B+ | B |
What People Say
Synthesized from 40 reviews · 100% verified purchases.
These masks are effective for most hair types seeking deep hydration and frizz control, but if you have extremely dry or color-treated hair, consider layering with other treatments. Use sparingly to prevent buildup, and check for strong scents if you're sensitive.
- Intense Softness and Hydration
- Lightweight and Non-Greasy Finish
- Frizz Control and Shine
- Pleasant and Long-Lasting Scent
- Excellent Value - A Little Goes a Long Way
- Overpowering Scent for Sensitive Users
- Can Weigh Hair Down or Become Greasy with Overuse
- Not Sufficient as Standalone for Severely Dry or Color-Treated Hair
Related Video Reviews
- 📹 The BEST Hair Masks for Healthy Hair! Which One Is Best For You? — Abbey Yung
- 📹 How to Fix Hair Damage? (Top 10 Hair Repair Products with Science-Backed Results) — Sareena Karim
- 📹 The ONLY hair masks you need. — Isabella Demarko
About K18
- 5 products in our database
- Average rating: 4.4/5 across all products
- Price range: $27 – $75
- Categories: hair-masks, hair-treatment-oils, shampoo-and-conditioner
Other hair masks
Bottom Line
K18 Leave-In Molecular Repair Hair Mask earns Mubboo Score B-. Priced at $75 — a premium option, above the category average of $26. Rated 4.5/5 from 9,607+ reviews. Strong buy if: buyers who prioritize quality over price in hair masks, risk-averse buyers. Skip if: you're on a tight budget — Moroccanoil Intense Hydrating Mask (Score B+, $46) may fit better.
Frequently Asked Questions
Is the K18 Leave-In Molecular Repair Hair Mask worth buying in 2026?
It earns a Mubboo Score of B-, with a 4.5/5 rating from 9,607 reviews — better than 45% of hair masks we track.
How much does the K18 Leave-In Molecular Repair Hair Mask cost?
It is currently $75 — premium-tier pricing for hair masks.
How does the Leave-In Molecular Repair Hair Mask compare to other hair masks?
The category's most-reviewed alternative is the Moroccanoil Intense Hydrating Mask (4.6/5, 19,156 reviews, $46). The Leave-In Molecular Repair Hair Mask carries a Mubboo Score of B- vs B+.
Sources & References
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-20) and may change.