
THE STORY OF FC-TGA-NH4
FC-TGA-NH4: The Precision Bond-Breaking Agent
FC-TGA-NH4 is a key active ingredient used in professional hair reshaping systems, including permanent waving, straightening, and relaxing creams. It works by breaking disulfide bonds within hair keratin, allowing irreversible restructuring of curl pattern, texture, and shape.
High-Purity Synthesis for Controlled Reactivity
Produced by neutralizing thioglycolic acid with ammonium hydroxide, FC-TGA-NH4 is supplied as a stabilized, cosmetic-grade aqueous solution. Each batch is filtered, pH-adjusted, and quality-tested to ensure predictable bond-breaking strength, low odor, and long-term storage stability.
Reshape. Reform. Redefine
Primary functions of FC-TGA-NH4 in cosmetics:
✅ Breaks disulfide (–S–S–) bonds in keratin
✅ Enables permanent waving, curling, or straightening
✅ Works efficiently under alkaline pH (8–10)
✅ Compatible with creams, gels, and lotion formats
✅ Allows controlled processing time for salon professionals
Used in: perm lotions, Brazilian straightening systems, texture-softening formulas, and chemical hair relaxing.
Powerful Chemistry. Strict Handling. Professional Use Only
Typical use level:5–15% activein hair perming systems.
Must be handled with gloves and eye protection.
Store in airtight containers away from heat, metal ions, and oxidizers.
Requires secondary neutralizer in final formulation (commonly hydrogen peroxide or sodium bromate).
Complies with global cosmetic regulatory limits when used inprofessional-only formulations.
Formulator’s Queries, We Answered
1. What is FC-TGA-NH4?
FC-TGA-NH4 is a high-quality cosmetic-grade form of Ammonium Thioglycolate, widely used in the personal care industry, particularly in hair treatment formulations. It acts as a reducing agent that breaks disulfide bonds in hair, allowing for reshaping in processes such as perming, relaxing, and straightening.
2. What is the CAS Number and INCI Name of FC-TGA-NH4?
CAS Number: 5421-46-5
INCI Name: Ammonium Thioglycolate
3. What are the benefits of using FC-TGA-NH4 in personal care products?
Hair Restructuring: Breaks and reforms hair’s disulfide bonds for perming and relaxing.
Controlled Action: Provides effective and predictable results in hair shaping treatments.
Versatility: Can be used for both permanent waves and hair straightening creams.
Stability: Offers reliable performance when formulated under controlled pH conditions.
4. What are the common applications of FC-TGA-NH4 in personal care?
Hair Perming Solutions – For creating long-lasting curls or waves.
Hair Straightening Creams – Used in chemical relaxers to smooth and straighten hair.
Depilatory Products – Sometimes included in hair removal formulations due to its keratolytic action.
5. Is FC-TGA-NH4 safe for use in personal care products?
Yes, FC-TGA-NH4 is considered safe when used within regulated concentrations and in properly formulated products. It is widely approved for professional hair treatments under cosmetic safety regulations.
6. Can FC-TGA-NH4 cause skin or scalp irritation?
Yes, improper use or high concentrations may cause irritation, redness, or sensitivity. It should always be used according to cosmetic safety guidelines, and professional application is recommended. A patch test is advisable before full use.