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Sonic hedgehog signaling is crucial for hair growth and maintaining hair follicle identity.

Hair product allergies are common, especially to hair dyes, and hairdressers are at higher risk.

Scalp injuries and harsh hair care can cause severe hair matting in children.

Various substances, including cosmetic sponges, vein glue, chai tea, skincare products, and medicaments, can cause allergic contact dermatitis, and healthcare workers often react to N95 masks.

Higher light doses cause more damage to hair follicles, predicting better hair removal results.

The document explains hair and nail biology, common hair loss conditions and treatments, oral and genital skin diseases, and the risks and treatments associated with squamous cell carcinoma.

Finasteride microspheres help reduce hair loss for up to eight weeks with fewer side effects.

Bmpr2 and Acvr2a receptors are crucial for hair retention and color.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

A topical treatment safely and effectively reduced acne by causing targeted cell death in sebaceous glands without side effects.

Staphylococcus epidermidis A/C strains are more antibiotic-resistant and infection-adapted, while B strains thrive in hair follicles.

The document concludes that developing generic topical drugs requires ensuring they match the original in quality, composition, and structure, and often involves complex testing and regulatory steps.

Choosing the right method to separate skin layers is key for good skin cell research.

A substance from hair follicle stem cells helps heal skin wounds in diabetic mice by promoting cell growth and preventing cell death.

Black henna tattoos can cause severe allergies to hair and textile dyes, and there's a need for greater public awareness and regulation.

Fatty acid transport protein 4 is essential for skin and hair development.

Researchers created a lab model to study human hair growth, showing it can grow and self-regulate outside the body.

Certain skin drugs and topical agents, including some natural extracts and fragrances, can cause allergic reactions. Some hair dyes and extensions, as well as minoxidil, a hair growth treatment, can also cause allergies. Botulinum toxin A can effectively reduce sweat but may have temporary side effects.

Human hair follicles can grow and stay healthy for up to 8 days in a lab setting.

Using wigs, hairpieces, and sprays can help people with hair loss feel better about themselves.

Shampoos are designed to clean and improve hair and scalp health, with specific ingredients for different hair types and conditions.

Volatile organic compounds can cause inflammation and increase the risk of autoimmune diseases.

EGF makes hair follicles grow longer but stops hair production.

Certain proteins are essential for the growth of root hairs in barley.

Annurca apple extract may protect mouse hair from damage by chemotherapy and could help treat hair loss without promoting cancer growth.

Scientists created a lab-grown hair follicle model that behaves like real hair and could improve hair loss treatment research.

People with hair loss have more androgen receptors and enzymes in certain follicles, with men and women showing different patterns.

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

Ozone reacts more with unwashed hair, producing compounds due to scalp oils, which could lower ozone exposure but increase exposure to reaction products.

Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.