K18 Peptide Prep Clarifying Shampoo for Product Build-Up, 16 fl oz
$80.70
$5.04 / fl oz
Free delivery Wed, Nov 18 – Tue, Nov 24 if you order today
K18 Peptide Prep Clarifying shampoo is a 16 fl oz (473 mL) shampoo listed for women’s hair and scalp. The brand says it is meant to lift product build-up, dirt, oil and hard water metals, and it describes the formula as color-safe with a pH range of 3.8 to 4.2.
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Description
K18 Peptide Prep Clarifying shampoo is a 16 fl oz (473 mL) shampoo listed for women’s hair and scalp. The brand says it is meant to lift product build-up, dirt, oil and hard water metals, and it describes the formula as color-safe with a pH range of 3.8 to 4.2. Key ingredients listed include salicylic acid, charcoal powder, sh-Oligopeptide-78 and panthenol.
K18 Peptide Prep Clarifying shampoo highlights
- Clarifying shampoo; the brand says it lifts product build-up, dirt, oil and hard water metals.
- The brand suggests using it in place of regular shampoo once a week or as needed.
- The brand describes the formula as color-safe, with a pH range it lists as 3.8 to 4.2.
- Key ingredients listed include salicylic acid, charcoal powder, sh-Oligopeptide-78 and panthenol.
- Contains Fragrance (Parfum), so check the ingredient list if you avoid fragrance.
- Size is 16 fl oz (473 mL). No shade or form options are given in the listing.
K18 Peptide Prep Clarifying shampoo details
| Brand | K18 |
|---|---|
| Product type | Clarifying shampoo |
| Product line | Peptide Prep |
| Size | 16 fl oz (473 mL) |
| Listed for | Women |
| Key ingredients | Salicylic Acid, Charcoal Powder, sh-Oligopeptide-78, Panthenol, Glycerin |
| Fragrance | Contains Fragrance (Parfum), Benzyl Salicylate and Limonene |
| pH range (per brand) | 3.8 to 4.2 |
| Scent field | Listed as Floral; no floral ingredient is named in the ingredient list |
| Applicator | Not stated in the listing |
| Container | Not stated in the listing |
How to use Peptide Prep Clarifying shampoo
- Use in place of regular shampoo once a week or as needed, per the brand.
- Massage into hair and scalp to remove excess build-up, per the brand.
- Rinse thoroughly.
- Repeat as needed, per the brand.
Ingredients
Water (Aqua) (Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Hydroxysultaine, Salicylic Acid, Charcoal Powder, sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Caprylyl Glycol, Caprylhydroxamic Acid, Citric Acid, Potassium Hydroxide, Sodium Hydroxide, Fragrance (Parfum), Benzyl Salicylate, Limonene
Formulas can change. Check the package for the most current ingredient list.
Good to know
- For external use only.
- Contains Fragrance (Parfum), Benzyl Salicylate and Limonene. Check the full ingredient list if you avoid these.
Questions about K18 Peptide Prep Clarifying shampoo
Can I use K18 Peptide Prep Clarifying shampoo every day?
The brand recommends using it in place of regular shampoo once a week or as needed. The listing does not describe daily use, so follow the brand’s guidance on frequency.
What size is K18 Peptide Prep Clarifying shampoo?
The listing gives the size as 16 fl oz, which is 473 mL. This is the only size shown on this page.
Does K18 Peptide Prep Clarifying shampoo contain fragrance?
Yes. The ingredient list includes Fragrance (Parfum), along with Benzyl Salicylate and Limonene. Check the full list if you avoid these ingredients.
Is K18 Peptide Prep Clarifying shampoo color-safe?
The brand describes the formula as color-safe and says its pH is optimized for lather, listing a range of 3.8 to 4.2. This is the brand’s description, not a result we tested.
Does this shampoo come in different shades or scents?
The listing does not give a shade or form. The scent field says floral, but the ingredient list does not name a floral ingredient, so this page does not confirm a scent name.
What size is the K18 Peptide Prep Clarifying shampoo?
The size on this page is 16 fl oz (473 mL).
Choosing your Peptide Prep Clarifying shampoo size
This listing has one size, 16 fl oz (473 mL), and no shade or form options are given. Because the brand suggests using it once a week or as needed, a shopper who clarifies less often may go through the bottle slowly. If you avoid fragrance, check the ingredient list before buying, since it contains Fragrance (Parfum). The brand's guidance is the best place to start for frequency.
Clarifying shampoo basics
A clarifying shampoo is a cleansing shampoo used to lift residue from hair and scalp. Many people use it less often than everyday shampoo. The product is worked into wet hair and scalp and then rinsed out fully. How often to use it depends on your hair and routine, so follow the directions on the label and check the ingredient list before you start.
About K18
K18 is a hair care brand. This page covers its Peptide Prep line, listed here as a clarifying shampoo. The brand's own copy describes the formula as color-safe and refers to one ingredient as K18PEPTIDE. Details here come from the brand and the listing.
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 Peptide Prep Clarifying shampoo 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.
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Additional information
| Weight | 1.21 lbs |
|---|---|
| Dimensions | 8.9 × 2.4 × 2.4 in |
| Size | 16 fl oz |
| For | Women |
| Features | Color Safe |

















