Hair Chemist Biotin Pro-Growth Shampoo & Conditioner Set — 33.8 oz Each, Sulfate-Free Color-Safe Duo

Hair Chemist Biotin Pro-Growth Shampoo & Conditioner Set is a two-piece salon-size duo formulated with biotin to cleanse, fortify and help hair appear fuller and stronger.

This 33.8 oz shampoo and 33.8 oz conditioner pair is designed for daily use and built around a biotin-enriched formula. Both bottles are free of sulfates, parabens and phthalates, are color-safe, and are made in the USA using naturally derived ingredients. The combination aims to gently cleanse while delivering conditioning and strengthening benefits for hair that looks thicker and more resilient.

How will this shampoo and conditioner set affect thin or thinning hair?

Formulated to target hair that needs extra body, the biotin-enriched shampoo and conditioner work together to improve manageability and visual density. The shampoo removes product buildup and excess oil without harsh sulfates, while the conditioner adds moisture and fortifying nutrients to reduce breakage.

• Biotin-enriched formulas to support stronger-looking strands
• Sulfate-free cleansing to preserve natural oils and color
• Conditioner reduces tangles and improves smoothness
• Large 33.8 oz sizes reduce refill frequency for busy households

How should I use the set for best results?

Use the shampoo first to cleanse the scalp and hair, rinsing thoroughly, then apply the conditioner mainly from mid-lengths to ends. Leave the conditioner on for one to three minutes before rinsing to allow the formula to penetrate and soften the hair cuticle.

• Wet hair thoroughly before applying a quarter-sized amount of shampoo
• Rinse completely and apply conditioner focusing on ends
• Use daily or as needed; consistent use shows most visible improvement
• Follow with styling products that are compatible with sulfate-free systems

Are these products safe for colored or chemically treated hair?

Yes—both the shampoo and conditioner are color-safe and formulated without sulfates and harsh additives that can strip or dull color. The gentle cleansing system helps maintain color vibrancy while providing conditioning support.

• Free from sulfates, parabens and phthalates
• Color-safe formulation minimizes fading
• Suitable for a variety of hair textures and chemical treatments
• Made in the USA with naturally derived ingredients

What results can I expect and when might I notice them?

Users typically notice improved manageability, softer hair, and less breakage within a few washes; fuller-looking hair often becomes more apparent with consistent use over several weeks. Individual results vary depending on hair condition, frequency of use and overall hair care routine.

• Smoother, detangled hair after first uses
• Stronger-feeling strands and less breakage with continued use
• Visibly fuller appearance over weeks of regular application
• Best paired with gentle styling and a healthy hair routine

Who is this for: This Hair Chemist Biotin Pro-Growth Shampoo & Conditioner Set is intended for people with fine, thinning or weakened hair who want a large, cost-effective daily-care duo. It's a good option for color-treated or chemically processed hair needing gentle cleansing and extra fortification without sulfates or parabens. If you prefer salon-size bottles and a biotin-forward approach to strengthen and boost hair appearance, this set offers a simple, consistent care routine.