OUAI Fine Hair Shampoo | Salon-Size Biotin Thickening for Fine Hair

OUAI Fine Hair Shampoo: Salon-Size Thickening Care for Fine Strands

OUAI Fine Hair Shampoo is a salon-size thickening cleanser crafted for fine, thin hair that needs lift. It delivers a gentle cleanse without stripping moisture, helping you achieve more bounce and movement without weight. The Mercer Street fragrance blends Italian lemon, iris, and white musk, creating a refreshing start to your routine and a light, lingering scent as you go about your day.

Designed for everyday use, this formula combines thoughtful ingredients to support a fuller feel without compromising softness. You’ll notice a lighter, more breathable result after washing, which can make styling easier and more fluid from root to tip.

What makes this shampoo stand out

• Volume you can feel: a lightweight cleanse that adds noticeable bounce without heaviness.
• Strength and shine: biotin supports stronger-feeling strands while hydrolyzed keratin smooths and adds shine.
• Thickening without compromise: chia seed oil thickens and volumizes while keeping hair airy and clean.
• Gentle, color-safe care: sulfate-free, paraben-free, phthalate-free, gluten-free formula safe for color-treated and keratin-treated hair.
• Longer routine compatibility: pairs well with OUAI Fine Conditioner and Thickening Spray for added lift.

Key ingredients and how they work

• Biotin helps support stronger-feeling strands and may help minimize breakage concerns for fine hair.
• Hydrolyzed keratin smooths the cuticle and adds natural shine for a polished look.
• Chia seed oil thickens and volumizes, contributing to a fuller appearance without heaviness.
• Sulfate-free, paraben-free, phthalate-free, and gluten-free formula supports a gentle cleanse for color-treated and chemically processed hair.

How to use for best results

• Start with wet hair, massage into roots, and work through to the ends to remove buildup and refresh the scalp.
• Rinse thoroughly, then follow with OUAI Fine Conditioner to lock in volume without weighing hair down.
• For extra lift, layer in OUAI Thickening Spray as part of your routine.

Who should consider this

• Fine or thinning hair seeking more volume and movement.
• Color-treated or chemically processed hair, since the formula is color-safe and gentle.

Fragrance note: Mercer Street offers a fresh, sophisticated scent profile with lemon, iris, and white musk to complement your daily routine and leave a subtle, lasting impression.