Diaminopyrimidine Oxide (Aminexil) CAS 74638-76-9

Diaminopyrimidine Oxide (Aminexil) – Hair Growth Stimulant and Follicle Strengthener

Basic Information

• Product Name: Diaminopyrimidine Oxide (Aminexil, Kopexil)

• INCI Name: Diaminopyrimidine Oxide

• CAS Number: 74638-76-9

• Molecular Formula: C₄H₆N₄O

• Molecular Weight: 126.12 g/mol

• Appearance: White to off-white crystalline powder

• Packaging: 1 kg per aluminum foil bag with PE liner

• Storage: Store in a cool, dry place. Shelf life: 24 months.

Overview
Diaminopyrimidine oxide (commonly known as Aminexil) is an active ingredient designed to combat hair loss and promote healthy hair growth. It works at the root level by softening the collagen surrounding hair follicles, which becomes rigid and compresses the root over time, leading to hair shedding. By improving the elasticity and flexibility of the follicular environment, Aminexil helps anchor hair more firmly, reduces premature hair loss, and supports continuous, healthy growth.

Mechanism of Action
Aminexil acts directly on the deep structure of the hair root. During the growth (anagen) phase, it prevents the fibrosis and hardening of collagen around the follicle, which is a primary cause of hair loss. By maintaining the flexibility of the follicular sheath, it allows the hair to anchor more securely, increases hair density, and restores vitality, ensuring steady and healthy hair growth.

Applications

• Hair oils, serums, and leave-in treatments.

• Hair conditioners and masks.

• Hair lotions and tonics.

• Shampoos (especially anti-hair fall formulations).

• Gels and styling products.

• Seasonal alopecia treatments and general scalp care.

Recommended Use

• Prevention and light treatment: 0.5% – 2%

• Intensive treatment: 2% – 5%

• Typically applied topically to the scalp once or twice daily.

Key Benefits

• Reduces hair shedding and prevents premature fall.

• Strengthens hair roots and increases hair density.

• Improves scalp condition and hair vitality.

• Safe and well-tolerated for regular use.

• Suitable for both men and women.

Handling and Storage

• Store in a cool, dry place, away from direct sunlight and moisture.

• Keep container tightly sealed after opening to prevent degradation.

• Use appropriate personal protective equipment (gloves, safety goggles) when handling.

Quality Assurance
Each batch is tested for purity, water content, and performance to ensure consistent quality.