Why protein science is now in all our product formulas

Daily stressors such as brushing, coloring, and heat styling can damage hair. To help, Nexxus includes the H4 complex in all its shampoo and conditioner formulas. This protein science-based blend of collagen, keratin, and elastin restores the four signs of healthy hair: moisture, strength, shine, and elasticity. Learn how this complex works to improve your hair's health.

Key takeaways

• The H4 complex: Nexxus formulas now feature the H4 complex, a protein-based blend of collagen, keratin, and elastin, to address hair damage from daily stressors.
• Four signs of health: This complex is scientifically formulated to restore four key signs of healthy hair: moisture, strength, shine, and elasticity.
• How it works: The H4 complex strengthens hair from within, creates a barrier to lock in moisture, and smooths the cuticle to increase shine and flexibility.
• Targeted product lines: You can address specific concerns like severe dryness or damage by choosing products that pair the H4 complex with other potent ingredients like green caviar or black rice.

Daily stressors like brushing, color treatments, and heat styling can damage hair. To address this, Nexxus haircare now includes the H4 complex in all shampoo and conditioner formulas. This blend of collagen, keratin, and elastin is based on protein science to restore the four signs of healthy hair: moisture, strength, shine, and elasticity. Here's a look at the science behind this complex and how it helps you achieve healthier hair.

Why moisture matters

Moisture is fundamental to hair health. Dehydrated hair often becomes static and unmanageable, while well-moisturized hair is softer and smoother. The H4 healthy hair complex restores and protects moisture by creating a micro-barrier around the cuticle to seal in hydration and natural shine. The formula also penetrates the hair's core to improve strength and elasticity.

To restore lost moisture, begin with your wash routine. Our silicone-free Therappe Ultimate Moisture Shampoo and Humectress Ultimate Moisture Conditioner feature the H4 complex, green caviar, and elastin protein. This combination provides weightless hydration for every strand for up to 24-hour moisture.

The science behind strengthening your strands

Healthy hair has a robust protein structure, making it resilient to breakage. When hair is damaged, its natural keratin protein is compromised. Using protein-rich products for hair repair, like our Keratin Keraphix Damage Healing Treatment Mask, helps restore the protective barrier. Infused with our healthy hair complex, keratin, and black rice, it penetrates deep to strengthen strands from the core.

Adding shine to your strands

Healthy, smooth hair cuticles reflect light, creating natural shine. Conversely, damage from color treatments or heat can weaken hair shafts, making them dry and dull. This process directly impacts the cuticle, the outer layer responsible for hair's healthy appearance.

The H4 complex, containing collagen, keratin, and elastin protein, smooths the cuticle to maximize shine and support a healthy scalp. Our Epic-Shine Anti Humidity Spray, includes this complex to nourish, protect from heat, and deliver a silky, shiny finish.

Enhancing elasticity for easier styling

Elasticity is a key indicator of hair's strength, allowing it to stretch and return to its original shape without breaking during styling. Well-hydrated hair is naturally more elastic and flexible, making it more pliable and easier to style into desired looks.

To enhance elasticity, nourish hair with products rich in collagen, keratin, and elastin, brush gently, and avoid excessive heat that can damage its protein structure. When using hot tools, always apply a heat protectant with nourishing ingredients, such as our Prep & Protect Heat Defense Spray. This helps prevent heat damage and conditions hair to retain moisture.