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    RCP Cosmetics
    Advanced Peptide Hair Growth Support Conditioner

    Hair & Body Care

    Advanced Peptide Hair Growth Support Conditioner

    A peptide-rich conditioner that nourishes the hair fibre for improved softness, shine, smoothness and resistance to breakage.

    €27.95
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    Preorder — ships in mid-December

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    Preorder — ships in mid-December

    Peptide Conditioner

    Nourishing Peptide Conditioner for Stronger, Smoother and Shinier Hair

    Peptide Conditioner is an advanced strengthening conditioner developed to nourish dry or weakened hair, improve smoothness and support the hair shaft against breakage.

    The formula combines Niacinamide, Hydrolyzed Silk Protein, Moroccan Argan Oil, Hydrolyzed Keratin, Myristoyl Pentapeptide-4, Biotinoyl Tripeptide-1, Acetyl Tetrapeptide-3, Hexapeptide-3 and Palmitoyl Tripeptide-1.

    This multi-benefit blend helps soften rough lengths, smooth frizz, improve shine and leave the hair feeling stronger, more manageable and visibly healthier.

    Nourish. Smooth. Strengthen. Shine.


    Key Benefits

    Benefit

    What It Does

    Deeply conditions the hair

    Helps replenish softness and improve the feel of dry or rough lengths.

    Strengthens the hair shaft

    Hydrolyzed Keratin and peptides support stronger-feeling strands.

    Helps reduce breakage

    Improves flexibility and manageability to minimize damage during brushing and styling.

    Improves smoothness

    Helps soften rough cuticles and reduce a dry or frizzy appearance.

    Enhances shine

    Argan Oil and Silk Protein help create a smoother, more reflective surface.

    Supports hair resilience

    A multi-peptide blend helps improve the appearance of weak or thinning-looking hair.

    Improves detangling

    Helps reduce knots and makes wet hair easier to comb.

    Supports scalp and root care

    Niacinamide and selected peptides complement a complete strengthening routine.


    Key Ingredients

    • Niacinamide

    • Hydrolyzed Silk Protein

    • Moroccan Argan Oil

    • Hydrolyzed Keratin

    • Myristoyl Pentapeptide-4

    • Biotinoyl Tripeptide-1

    • Acetyl Tetrapeptide-3

    • Hexapeptide-3

    • Palmitoyl Tripeptide-1


    Key Ingredients Explained

    Niacinamide

    Niacinamide supports scalp and hair conditioning.

    It helps:

    • support a balanced scalp environment;

    • improve the appearance of dull hair;

    • complement root-focused peptide care;

    • maintain a healthier-looking finish.

    Hydrolyzed Silk Protein

    Hydrolyzed Silk Protein coats and conditions the hair surface.

    It helps:

    • improve softness;

    • enhance shine;

    • smooth rough-feeling strands;

    • reduce friction during brushing;

    • create a silkier finish.

    Moroccan Argan Oil

    Argan Oil is rich in conditioning lipids that help nourish dry hair.

    It helps:

    • improve softness;

    • reduce frizz;

    • enhance shine;

    • support flexibility;

    • protect the hair from a brittle appearance.

    Hydrolyzed Keratin

    Hydrolyzed Keratin helps temporarily reinforce damaged areas of the hair shaft.

    It helps:

    • improve the feel of weak hair;

    • reduce roughness;

    • support hair strength;

    • enhance smoothness;

    • minimize the appearance of split or damaged ends.

    Multi-Peptide Complex

    The combination of Myristoyl Pentapeptide-4, Biotinoyl Tripeptide-1, Acetyl Tetrapeptide-3, Hexapeptide-3 and Palmitoyl Tripeptide-1 helps support:

    • stronger-looking hair;

    • improved resilience;

    • healthier-looking lengths;

    • reduced visible breakage;

    • smoother and more manageable strands.


    Ingredient Benefit Overview

    Key Ingredient

    Main Function

    Visible Benefit

    Niacinamide

    Scalp and hair conditioning

    Healthier-looking hair

    Hydrolyzed Silk Protein

    Surface smoothing

    Softer, shinier hair

    Moroccan Argan Oil

    Nourishing lipid care

    Smoother, less frizzy lengths

    Hydrolyzed Keratin

    Hair-shaft reinforcement

    Stronger-feeling strands

    Multi-Peptides

    Strength and resilience support

    Fuller, healthier-looking hair


    Who Is It For?

    Peptide Conditioner is especially suitable for:

    • dry or rough hair;

    • weak and brittle strands;

    • hair prone to breakage;

    • frizzy or difficult-to-manage hair;

    • chemically treated hair;

    • heat-styled hair;

    • dull-looking hair;

    • thinning-looking hair that needs lightweight conditioning.


    How to Use

    1. Shampoo and rinse thoroughly.

    2. Apply the conditioner to the mid-lengths and ends.

    3. Distribute evenly through the hair.

    4. Leave on for approximately three minutes.

    5. Rinse thoroughly.

    For best results, use with Peptide Anti-Hair-Loss Shampoo.


    Final Product Description

    Peptide Conditioner is a nourishing strengthening treatment designed to improve smoothness, shine and hair-shaft resilience.

    The combination of Hydrolyzed Silk Protein, Argan Oil, Hydrolyzed Keratin, Niacinamide and multiple peptides helps soften rough hair, reduce breakage and improve manageability without sacrificing a healthy-looking finish.

    Stronger strands. Smoother lengths. Visible shine.

    SEO Title

    Peptide Conditioner | Strengthening, Smoothing & Shine Care


    Scientific references

    These publications concern individual ingredients or related formulations. They do not constitute a clinical test of this finished rcpcosmetics product and should not be read as a medical claim.

    1. Basit et al. (2020) — Hydrolysed keratin penetration and physical properties of textured hair
      Laboratory hair-fibre study of separate hydrolysed keratin treatments; it did not test either finished RC Cosmetics hair product.
    2. Dario et al. (2018) — Conditioner agents and oxidatively dyed hair
      Laboratory hair-tress study of separate conditioner agents, including a hydrolysed silk blend; it did not test this conditioner.
    3. Sharifi et al. (2022) — Argan oil pretreatment and oxidative damage in human hair
      Laboratory study on excised human hair pretreated with argan oil; it does not demonstrate hair growth or test this conditioner.

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