HASK Biotin Boost Thickening Shampoo & Conditioner Set — 12oz Each, Sulfate‑Free Volumizing Care for Fine or Thinning Hair

HASK Biotin Boost Thickening Shampoo + Conditioner Set is a two-step haircare duo designed to add visible fullness, strengthen fragile strands, and create voluminous-looking hair without sulfates or parabens.

Created for fine, limp, or thinning-looking hair, this set pairs a biotin-enriched shampoo with a complementary conditioner to lift roots, reinforce fiber, and leave hair feeling thicker and more resilient. Both bottles are color-safe and formulated without sulfates, parabens, phthalates, gluten, or drying alcohols, delivering everyday body with a fresh, herbaceous scent.

How does the Biotin Boost system give hair more body?

The formula combines targeted surfactants and conditioning agents with biotin to create the appearance of fuller hair. The shampoo cleanses without stripping, while the conditioner smooths and plumps each strand so hair holds volume longer.

• Biotin helps support the look of stronger strands.
• Lightweight conditioning avoids weighing roots down.
• Tri-level thickening approach lifts roots, thickens shaft, and improves manageability.
• Sulfate-free cleansing preserves color and natural oils.

Will this set work with color-treated or chemically processed hair?

Yes — both formulas are color-safe and crafted to be gentle on treated hair. They avoid harsh sulfates and drying alcohols that can strip pigment, so you can use them between salon visits to maintain body and shine.

• Safe for color when used as directed.
• Free from sulfates and parabens that accelerate fading.
• Formulated to hydrate without flattening style.

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

Use the shampoo to thoroughly cleanse roots and mid-lengths, then follow with conditioner focused on the mid-lengths to ends. For maximum volume, rinse thoroughly and style with root-lifting techniques or volumizing tools.

• Apply shampoo to wet hair, lather at roots, rinse.
• Work conditioner through mid-lengths and ends, leave 1–2 minutes, then rinse.
• Blow-dry with a round brush or use a diffuser for added lift.

Is this set free from common irritants and allergens?

The HASK Biotin Boost duo is formulated without sulfates, parabens, phthalates, gluten, and drying alcohols to reduce the chance of irritation and preserve hair health. While many common additives are omitted, always patch-test if you have sensitive skin or known allergies.

• Contains no sulfates or parabens.
• Phthalate-free and gluten-free formulation.
• No drying alcohols to help maintain moisture balance.

Who is this for: This set is ideal for people with fine, limp, or thinning-looking hair who want more lift and strength without compromising color or adding heavy build-up. It's also suited to anyone seeking a cleaner formulation free from sulfates and parabens, and to users who prefer a lighter conditioner that supports styling and long-lasting volume.