Hair Chemist Pro-Growth Shampoo & Conditioner Set — 33.8 oz Biotin Duo for Thinning Hair, Sulfate-Free Strengthening

This extra-large duo combines a shampoo and conditioner formulated with biotin and supportive ingredients to improve hair manageability and body. Both bottles are sulfate-, paraben-, and phthalate-free, color safe, and made in the USA. The set is designed for daily use and offers larger pump-style bottles suitable for households, salons, or consumers who prefer value-size hair care.

How will this set affect fine or thinning hair?

The formulas aim to improve the look and feel of hair by strengthening strands and enhancing fullness without harsh sulfates. Regular use helps detangle and smooth while providing lightweight conditioning that avoids weighing hair down.

• Biotin-enriched shampoo to help reinforce fragile strands during cleansing
• Fortifying conditioner that adds slip and reduces breakage during combing
• Color-safe, gentle surfactants to preserve treated hair
• Large 33.8 oz bottles for consistent routine and long-term use

What are the key ingredients and safety details?

Biotin is the highlighted vitamin in these formulas, supported by conditioning agents and mild cleansers. The set is free from sulfates, parabens, and phthalates, reducing the risk of stripping natural oils or irritating sensitive scalps for many users.

• Biotin (water-soluble B vitamin) included in both shampoo and conditioner
• Sulfate-free surfactants for gentler lather
• Paraben- and phthalate-free formulation for cleaner ingredient profiles
• Made in the USA with a focus on hair-strengthening support

How should I use each product for best results?

Use the shampoo to thoroughly cleanse the scalp and hair, then follow with the conditioner focusing on mid-lengths to ends. For best manageability, leave the conditioner in for one to three minutes, then rinse; repeat or combine with styling products as needed.

• Wet hair, apply a quarter-sized amount of shampoo, massage into scalp, rinse well
• Apply conditioner primarily from mid-shaft to ends, leave 1–3 minutes, rinse
• Use daily or every other day depending on hair type and scalp oiliness
• Pair with other gentle styling products to maintain volume without buildup

What size and value does this set offer?

Each bottle contains 33.8 ounces, which is significantly larger than standard retail sizes; the set is tailored for users who want longer-lasting supply or households sharing products. Value-size packaging also reduces the need for frequent replacements and is practical for salon backbar or gym showers.

• Two 33.8 oz bottles—shampoo and conditioner—included
• Ideal for long-term use, multiple users, or professional settings
• Large format supports consistent routine without frequent repurchase
• Travel considerations: transfer to smaller bottles for trips

Who is this for: This duo is suited to people with fine, thinning, or fragile hair who want gentle cleansing and stronger-feeling strands from a biotin-enhanced system. It's also a good match for households and professionals seeking a color-safe, sulfate-free daily regimen in larger bottles for convenience and cost-effectiveness. If you prefer intensive treatment serums or have specific scalp medical conditions, combine this set with targeted products recommended by a professional.