Nécessaire hair duo Shampoo + Conditioner Set 2 x Full-Size — Hyaluronic Acid & Vitamin B, Fragrance-Free, Eczema-Friendly

Nécessaire The Hair Duo pairs a hydrating hyaluronic-acid shampoo with a vitamin B–rich conditioner to nourish scalp and strands in a fragrance-free, eczema-friendly formula.

Designed as a skincare-first approach for hair, this full-size shampoo and conditioner set focuses on scalp health and gentle, effective cleansing. Formulated without common irritants and backed by the National Eczema Association’s Seal of Acceptance, the duo targets hydration and resilience using clinically-recognized actives such as hyaluronic acid, panthenol and niacinamide. Both bottles are full-size and the packaging reflects the brand’s sustainability commitments.

How does this duo hydrate scalp and hair?

These products combine moisture-attracting and water-retaining ingredients to improve surface hydration without heavy residue. Hyaluronic acid helps retain moisture, while panthenol and aloe vera support flexibility and smoothness. The fragrance-free base minimizes potential irritation for sensitive scalps.

• Hyaluronic acid for water retention at the hair and scalp surface
• Panthenol (provitamin B5) and niacinamide for improved strength and texture
• 10% aloe vera leaf juice added for calming hydration
• Fragrance-free formula reduces irritation risk

Will it work for sensitive or eczema-prone scalps?

Yes—both shampoo and conditioner were developed to be gentle and have earned the National Eczema Association’s Seal of Acceptance. The formulas are hypoallergenic, dermatologist-tested, and free from SLS/SLES and fragrances to lower the chance of flare-ups. A proprietary celery seed extract is included to help minimize irritation during use.

• National Eczema Association Seal of Acceptance
• Hypoallergenic and dermatologist-tested
• No sulfates (SLS/SLES) and fragrance-free
• Celery seed extract to help reduce irritation potential

How do I use The Shampoo and The Conditioner for best results?

Use The Shampoo to cleanse the scalp and hair on wash days, massaging it into wet roots and through lengths, then rinse thoroughly. Follow with The Conditioner, focusing on mid-lengths to ends for slip and detangling; leave in briefly if you need extra conditioning before rinsing. Regular use helps maintain scalp hydration and manageability.

• Apply Shampoo to wet hair, massage into scalp, rinse well
• Apply Conditioner primarily to mid-lengths and ends, leave briefly, then rinse
• Use on wash days as part of a scalp-first routine
• Consistent use supports hydrated scalp and smoother hair

What are the sustainability and safety credentials?

Nécessaire incorporates environmental and ethical standards across packaging and production. The Shampoo bottle is made from 100% bio-resin HDPE, and the brand holds multiple certifications that reflect social and climate commitments. Ingredients and testing practices prioritize safety for sensitive skin while remaining cruelty-free and vegan.

• Shampoo bottle: 100% bio-resin HDPE
• Certified B Corp, Climate Neutral, Plastic Neutral
• Leaping Bunny certified cruelty-free and vegan
• 1% For The Planet member and FSC-certified packaging elements

Who is this for: The Hair Duo is ideal for people seeking a gentle, science-minded shampoo and conditioner set that prioritizes scalp health and hydration. It suits those with sensitive or reactive scalps, anyone avoiding fragrances and sulfates, and shoppers who prefer sustainable and cruelty-free personal care products. If you want a straightforward, dermatologist-tested cleansing and conditioning ritual that leans into skincare ingredients, this pair is designed to fit into your wash-day routine.