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Nanotechnology could improve hair regrowth but faces challenges like complexity and safety concerns.

Blond hair lightens more with visible light directly, while ultraviolet light lightens it after washing by damaging other hair parts.

Hairless rats are good for testing anti-inflammatory drugs, similar to haired rats, without needing to remove fur.

Vitamin A is important for healthy skin and hair, influencing hair growth and skin healing, but UV light reduces its levels.

Most low-level light therapy studies did not accurately report how light was measured, affecting treatment reliability.

Combining narrow-band ultraviolet B light and stem cell transplantation helps repigmentation in vitiligo by maintaining calcium balance in mice.

LED light helps human hair root cells grow and move by activating certain cell pathways.

Fat-derived stem cells can help protect and repair skin stem cells from aging caused by UV light.

LED light helps hair follicle cells grow and prevents them from dying by activating certain cell pathways.

LED light helps human hair root cells grow and prevents them from dying by activating specific growth pathways.

Human skin's melanocytes respond to light by changing shape, producing pigments and hormones, which may affect sleep patterns.

Lupus affects the skin in various ways, and proper skin examination is crucial for diagnosis and treatment.

Chemotherapy can cause various skin reactions, with hair loss being the most common, and proper diagnosis and treatment of these reactions are important.

Pollution exposure speeds up hair damage.

UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.

Low-level Laser Therapy may help reduce inflammation, pain, and aid healing, but more research is needed to confirm its effectiveness and establish standard treatment guidelines.

Visible light can damage skin and most sunscreens don't block it well; more research is needed on its effects and protection methods.

Low-Level Light Therapy (LLLT) is a safe and effective method for skin rejuvenation, acne treatment, wound healing, body contouring, and hair growth, but more well-designed trials are needed for confirmation.

Laser and light therapies, especially the 308 nm excimer laser, are effective and safe for treating alopecia areata, but more research is needed.

Ionizing radiation damages human hair follicles by stopping cell growth, causing cell death, disrupting color, and increasing stress and damage markers.

Low-Level Light Therapy is effective for skin rejuvenation, wound healing, and hair growth, with mild side effects.

Blue light might help treat skin conditions by affecting the skin's bacteria.

Low-level laser therapy might help hair growth, but more research is needed.

UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.

Trichoscopy is a helpful and quick method to diagnose hair loss without shaving.

Light therapy using helium-neon lasers can help restore skin color in vitiligo by promoting skin cell growth and movement.

Chamomile extract can protect hair from damage caused by light.

Different light affects cell functions and can help treat skin conditions.

Human skin responds to light with protective mechanisms, but more research is needed to understand these processes and their implications for health and therapy.

Tempeh oil rich in linoleic acid may protect against skin aging caused by UV light.