K18 Peptide Prep ph Maintenance Shampoo

Daily pH-Balanced Shampoo with K18Peptide

Peptide Prep pH Maintenance Shampoo from K18 is a daily cleanser micro-dosed with the patented K18Peptide (SH-Oligopeptide-78). The formula is balanced to the natural pH of the hair fiber, so it lifts away buildup without disrupting the cuticle or the scalp. Gentle co-surfactants pair with Panthenol and Glycerin to keep strands soft and hydrated through the wash. Designed as a clean foundation under the rest of the K18 system — no heavy coating ingredients.

Why Choose It?

• pH-optimized to 4.5-5.5 to help keep the cuticle flat — supports shine, frizz control and color retention
• Daily-use formula — gentle enough on the hair fiber and scalp to use every wash
• Micro-dosed with K18Peptide (SH-Oligopeptide-78) for a strengthening cleanse
• Panthenol and Glycerin add humectant softness and hydration through the wash
• Clean foundation — no heavy coating fillers, so the rest of the K18 system can work properly afterwards

Best For

Anyone looking for a daily shampoo that respects the hair pH — useful for color-treated, damaged or frizz-prone hair that needs a balanced cleanse without harsh stripping. Works as the cleansing foundation of a wider K18 routine.

Use as the cleansing step before the rest of the routine — follow with a peptide-based molecular repair hair treatment on damp hair before styling.

• Wet hair thoroughly with warm water.
• Apply a small amount of shampoo and lather gently from roots to ends.
• Massage the scalp to lift away oil and product buildup, then work the lather through the lengths.
• Rinse thoroughly with warm water.
• Repeat the wash if hair is heavily soiled or holds a lot of styling product.

Tips

• On heavy buildup days, lather twice — the first lather lifts surface residue, the second cleanses the strand.
• Towel-blot rather than rough-dry before applying the leave-in step, so the K18Peptide treatment is not diluted.
• Pair with a pH-balanced conditioner or leave-in to keep the cuticle in the same balanced range between washes.