OUAI Fine Shampoo & Conditioner Set – Sulfate-Free 10 fl oz Duo for Fine Hair with Keratin & Avocado Oil

OUAI Fine Shampoo and Conditioner Set is a sulfate-free duo designed to gently cleanse, strengthen and add lift to fine hair using keratin, marshmallow root, shea butter and avocado oil.

This two-piece kit pairs a lightweight, hydrating shampoo with a complementary conditioner formulated to boost volume without weighing strands down. Both formulas avoid parabens and phthalates and include targeted ingredients—keratin and biotin for strength, chia seed and avocado oils for moisture, plus marshmallow root to help detangle and create slip—so fine hair looks fuller while staying soft and manageable.

How will this set affect limp or flat hair?

The combination focuses on lifting the hair at the root and improving strand strength so styles hold with less product. The shampoo removes build-up without stripping, and the conditioner delivers just enough hydration to smooth and thicken the appearance of each fiber.

• Keratin and biotin support stronger, more resilient strands.
• Sulfate-free cleansing preserves natural oils and color vibrancy.
• Lightweight conditioning avoids heavy residues that flatten hair.
• Marshmallow root helps detangle, reducing breakage during styling.

Will this set make my hair feel dry or greasy?

The formulas balance moisture and lift: nourishing oils and shea butter restore softness while the lightweight texture prevents buildup. Fine hair typically responds well because the products target hydration where it’s needed without over-coating each strand.

• Chia seed and avocado oils add slip and shine without heaviness.
• Shea butter provides controlled moisture for dry ends.
• Sulfate-free shampoo cleans thoroughly but gently to avoid excess oil production.

How should I use the shampoo and conditioner for best results?

Begin with a small amount of shampoo, lather at the roots, and rinse fully to remove residue. Apply conditioner mainly to mid-lengths and ends for targeted hydration; leave in one to two minutes, then rinse to preserve volume at the scalp.

• Use 1–2 pumps of shampoo depending on hair length and oiliness.
• Concentrate conditioner on mid-lengths and ends—avoid roots for more lift.
• Pair with lightweight styling products to enhance fullness.

Is this set safe for color-treated or chemically processed hair?

Yes—the sulfate-free formula is gentler on color and treatments than traditional sulfated cleansers. The strengthening ingredients help reduce breakage, which benefits chemically treated hair, while the moisturizing agents maintain shine and manageability.

• Sulfate-free cleansing helps protect color longevity.
• Keratin and biotin support hair integrity after chemical services.
• Hydrators like shea butter prevent dry, brittle ends following treatments.

Who is this for: This set is made for people with fine, flat, or thinning hair who want cleaner, fuller-looking strands without heavy conditioning. It’s suitable for both women and men seeking a simple daily routine that improves volume and strengthens hair, including those with color-treated or chemically processed hair who prefer products free from parabens and phthalates.

Ingredients

Please refer to the product labels for full list of ingredients.