6-Month Trial of Chinese Herbal Treatments for Hair Loss and Gray Hair

Inclusion criteria

• Participants must sign the informed consent form prior to enrollment and fully understand the study's purpose, procedures, and potential adverse events.
• Adults aged 18 to 60 years, both male and female; each group must include no less than 50% female participants.
• Hair length must be greater than 5 cm.
• Women must meet the Savin scale classification between grades 1-3 to II.
• Men must meet the Norwood-Hamilton classification between stages II and VI.
• At least 10 participants in each group must have gray hair, with a minimum of 5 gray hairs within a 1 cm × 4 cm area of the scalp.
• Participants must not have undergone any special hair treatments-such as dyeing, perming, or styling-within the past two months.

Exclusion criteria

• Pregnant or breastfeeding women, or individuals planning to conceive in the near future.
• Individuals with medical conditions causing hair loss, such as refractory alopecia areata, inflammatory scarring alopecia, or psoriatic alopecia; or those diagnosed with other scalp or hair disorders.
• Individuals with diagnosed psychiatric or psychological disorders, or those with long-term sleep disturbances or emotional regulation issues.
• Use of anti-hair loss cosmetics or other hair growth-promoting products within the past 3 months.
• Use of any systemic or topical medications known to affect hair growth within the past 6 months.
• History of hair transplantation.
• Curly hair.
• Individuals with highly sensitive constitutions.
• Individuals diagnosed with severe anemia or abnormal liver/kidney function during physical examination.
• Participation in any other clinical trials involving the test area within the past 2 months.
• Any other conditions deemed unsuitable for participation by the clinical investigators.