MONDAY HAIRCARE Volume Shampoo for Thin, Fine Hair — 354 mL, Sulfate-Free & Hydrolyzed Collagen

MONDAY HAIRCARE VOLUME Shampoo is a sulfate- and paraben-free formula with hydrolyzed collagen and macadamia oil designed to add body and shine to thin, fine, or flat hair.

This shampoo blends active, hair-friendly ingredients in a pH-balanced, dermatologically tested base to gently cleanse while boosting the appearance of fullness. The formula pairs hydrolyzed collagen, which helps support hair structure, with macadamia oil’s emollient properties to smooth and reflect light. It’s also cruelty-free (Leaping Bunny and PETA) and packaged in a recyclable bottle for everyday use.

How does this shampoo create more volume without weighing hair down?

The formula focuses on lightweight supporting ingredients that enhance strand thickness and surface texture rather than heavy oils or silicones. Hydrolyzed collagen deposits simple protein fragments that can temporarily plump the shaft, while the base cleanses impurities so styling lifts hold better.

• Hydrolyzed collagen: helps increase perceptible strand body
• Lightweight macadamia oil: adds shine without heavy residue
• Sulfate-free cleansing: preserves natural oils and reduces flattening
• pH balanced: helps maintain cuticle integrity for smoother, fuller-looking hair

Will this shampoo work on colored or chemically treated hair?

The gentle, sulfate-free formulation is generally suitable for color-treated and chemically processed hair because it reduces aggressive stripping of pigments and moisture. Its pH-balanced composition supports cuticle health, which helps maintain color vibrancy between salon visits.

• Sulfate-free to minimize color fading
• Dermatologically tested for compatibility with sensitive scalps
• Protein and emollients to support treated strands

How should I use it for best results on thin or flat hair?

Apply twice if hair is especially oily or weighted down: first to remove buildup, second to treat and condition. Focus the product on roots and mid-lengths, rinse thoroughly, and follow with a lightweight conditioner or styling product designed for volume to lock in lift.

• Massage into wet scalp and hair for 30–60 seconds
• Rinse and repeat for deeper cleansing and fuller feel
• Pair with a volumizing conditioner or root-lift spray for lasting hold

What ethical and safety credentials does the product have?

MONDAY HAIRCARE VOLUME Shampoo is Leaping Bunny approved and PETA certified, confirming it’s cruelty-free. The formula is free from parabens and sulfates, dermatologically tested, and comes in a recyclable bottle to reduce environmental impact.

• Leaping Bunny and PETA cruelty-free certifications
• No parabens or sulfates listed on the label
• Dermatologically tested and pH balanced
• Recyclable bottle reduces waste

Who is this for: This shampoo is tailored for people with thin, fine, or flat hair seeking lightweight fullness and improved shine without harsh detergents. It’s a solid choice for those who want everyday volume support while preferring cruelty-free, paraben- and sulfate-free formulations. If you regularly style for extra lift or have color-treated hair, this product can fit into a routine that emphasizes gentle cleansing and volumizing care.

Ingredients

Aqua (Water), Cocamidopropyl Betaine, Disodium Laureth Sulfosuccinate, Sodium C14-16 Olefin Sulfonate, Sodium Chloride, Glycerin, Hydrolyzed Collagen, Macadamia Integrifolia Seed Oil, Sodium Methyl Cocoyl Taurate, Cocamide MIPA, Polyquaternium-10, PEG-120 Methyl Glucose Dioleate, Salicylic Acid, Citric Acid, Polyquaternium-7, Phenoxyethanol, Sodium Benzoate, Parfum (Fragrance), Menthol, Hexyl Cinnamal, Linalool.