K18 Leave-In Molecular Repair Hair Mask Cream Pump 1.7 fl oz 50 ml
$101.50
$60.03 / fl oz
Free delivery Tue, Nov 17 – Mon, Nov 23 if you order today
K18 Hair Mask is a leave-in cream hair treatment mask sold in a pump bottle of 1.7 fl oz (50 ml). The brand says it is meant for hair that has been damaged by bleach, color, chemical services or heat, and that it is used on towel-dried hair without rinsing.
In stock
Free shipping on every order, no minimum
- Free 30-day returns on unopened items
- Ships within 1–2 business days, delivery in about 2–5 business days
- Secure, encrypted checkout
- Questions? Call (888) 228-8264
Description
K18 Hair Mask is a leave-in cream hair treatment mask sold in a pump bottle of 1.7 fl oz (50 ml). The brand says it is meant for hair that has been damaged by bleach, color, chemical services or heat, and that it is used on towel-dried hair without rinsing. The listed ingredients include fragrance and denatured alcohol, so this mask is not fragrance-free.
K18 Hair Mask highlights
- Cream leave-in mask applied from a pump to towel-dried hair.
- Per the brand, let it sit 4 minutes, then do not rinse.
- Per the brand, it is made for hair that has seen bleach, color, chemical services or heat.
- Key ingredient is sh-Oligopeptide-78 (K18PEPTIDE), which the brand describes as its peptide.
- Contains fragrance and alcohol. Not fragrance-free.
- Size is 1.7 fl oz (50 ml).
K18 Hair Mask details
| Product type | Leave-in hair treatment mask |
|---|---|
| Variant name | Original (listed as a variant, not a shade) |
| Audience | Unisex |
| Form | Cream |
| Key ingredient | sh-Oligopeptide-78 (K18PEPTIDE), described by the brand as its peptide |
| Fragrance | Contains fragrance (parfum), geraniol, linalool, hexyl cinnamal and benzyl alcohol |
| Alcohols | Contains denatured alcohol and isopropyl alcohol |
| Dispensing | Pump |
| Size | 1.7 fl oz (50 ml), 1 item |
| Package weight | 91 g |
How to use Hair Mask
- Shampoo your hair, then skip conditioner. The brand says a conditioner film may block the peptide.
- Towel-dry your hair thoroughly.
- Apply 1-3 pumps from the ends to the roots and massage through. The listing also says less is more.
- Let it sit for 4 minutes. Do not rinse.
- Style as usual. The brand suggests using it for 4-6 consecutive washes, then as needed.
Ingredients
Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20,sh-Oligopeptide-78 (K18PEPTIDE™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.
Formulas can change. Check the package for the most current ingredient list.
Good to know
- For external use only.
- Avoid contact with eyes.
- Keep away from naked flame or direct heat sources.
Questions about K18 Hair Mask
Is K18 Hair Mask fragrance-free?
No. The ingredient list includes fragrance (parfum), along with geraniol, linalool, hexyl cinnamal and benzyl alcohol. Check the list if you have scent preferences.
Do you rinse out K18 Hair Mask?
The brand says to shampoo, skip conditioner, apply to towel-dried hair, let it sit 4 minutes and not rinse. Then style as usual.
What size is K18 Hair Mask?
The listing shows 1.7 fl oz (50 ml). Some listing text refers to a 15 ml mask, so check the printed size on your pack.
Can I use conditioner with K18 Hair Mask?
The brand says to skip conditioner before use, because a conditioner film may block the peptide from penetrating the hair.
How often does the brand suggest using K18 Hair Mask?
The brand suggests using it for 4-6 consecutive washes, then as needed. This page does not state how the product will perform for your hair.
What size is the K18 Hair Mask?
The size is 1.7 fl oz (50 ml).
Choosing your K18 Hair Mask size
The listing shows one size, 1.7 fl oz (50 ml). Some listing text refers to a 15 ml mask, so check the printed size on your pack before you buy. The mask is a cream applied from a pump. If you prefer a scent-free product, note that this one contains fragrance. Hair length and how often you plan to use it can help you judge how much product you need.
Hair mask basics
Leave-in masks are usually applied to damp or towel-dried hair and left in rather than rinsed out. Because the product stays on, the ingredient list matters more than with a rinse-off product. Many people apply the product, let it sit for the time the label gives, and then style as usual. Keeping your shampoo and conditioner routine consistent makes it easier to judge how a product fits your hair over time.
About K18
K18 is the brand behind K18 Hair Mask. The brand describes its key ingredient in this mask, sh-Oligopeptide-78, as its peptide, which it calls K18PEPTIDE. The listing gives the product as unisex.
Reading the ingredient list
Cosmetic ingredient lists generally run from the largest amount to the smallest, as described in the FDA cosmetics labeling guide. Color additives and ingredients present at one percent or less can appear in any order.
Shipping and returns
Free shipping on every order, no minimum. Orders ship within 1–2 business days, and delivery takes about 2 to 5 business days. Your K18 Hair Mask can be returned within 30 days of delivery if it is unused and unopened, in its original packaging with any seals intact, and return shipping is always free. Damaged, defective or wrong items are always covered. Read our shipping policy and return policy, or call (888) 228-8264 or email hello@vanityaisle.com.
Looking for something similar? Browse all Hair Masks in our Hair Care section. Every order ships free.
Additional information
| Weight | 0.2 lbs |
|---|---|
| Dimensions | 4.1 × 1.9 × 1.9 in |
| Size | 1.7 fl oz |
| Form | Cream |

















