research Hair and Aging.
Hair becomes thinner, grayer, and may fall out more as people get older, and styling habits can worsen these effects.
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510-540 / 1000+ results research Towards a “free radical theory of graying”: melanocyte apoptosis in the aging human hair follicle is an indicator of oxidative stress induced tissue damage
Oxidative stress causes hair to gray by damaging and killing pigment cells.
research Ultrastructure study of hair damage after ultraviolet irradiation
UV treatment can damage hair, so protection is advised.
research Nonsynchronized segmented heterochromia in black scalp hair
A 14-year-old girl's black hair showed unique color changes, suggesting early greying.
research Uncombable hair syndrome: A case presentation
Uncombable hair syndrome causes dry, frizzy hair that can't be combed flat, seen in a young child.
research Chemotherapy-induced alopecia: A novel observation
Some patients' hair grew back black and white after chemotherapy.
research Ammonium bisulfite contact dermatitis: face eczema due to a bleaching ointment used during hair‐dying
Ammonium bisulfite in hair bleach can cause facial eczema.
research Mechanism of hair straightening
Hair can be straightened using different chemicals, not just strong alkali.
research The effect of blue light on the scalp and hair follicles
Blue light can damage hair and scalp, leading to hair loss.
research The science of color: How chemical dyeing processes transform hair structure
Oxidative dyes damage hair more than semi-permanent dyes, but new technologies help protect hair while coloring.
research A New Permanent Straightening Process of Human Hair Using the Water Set
The new hair straightening method keeps hair straight permanently by using specific creams and heat.
research Effects of silicone pretreatment on oxidative hair damage
Silicone pretreatment protects hair from damage and reduces color fading without interfering with bleaching or dyeing.
research PREMATURE HAIR GRAYING: FACTORS THAT CONTRIBUTE THE MECHANISMS OF THE PROCESS
Premature hair graying is caused by various factors and mechanisms.
research Disorders of Hair Pigmentation
Hair color is determined by melanin and can be affected by genetic conditions like albinism.
research Unilateral heterochromia of scalp hair with adjacent hypomelanotic skin lesions
The boy's hair and skin color differences are due to a pigmentation disorder.
research Evaluation of hair damage treated with oxidative hair dye under influence of conditioners agents
Conditioners improved hair protein retention and combing ease, with some providing thermal protection.
research Reversible Hyperpigmentation of Skin and Nails With White Hair due to Vitamin B12 Deficiency
Vitamin B12 deficiency can cause skin and hair color changes, which are reversible with treatment.
research Reversible hyperpigmentation of skin and nails with white hair due to vitamin B12 deficiency
Vitamin B12 deficiency can cause skin and hair color changes, which can be reversed with treatment.
research Human Hair Pigment: A Mild Isolation Procedure and a Method for Characterization
A new method was developed to gently isolate hair pigment while keeping its structure intact.
research A Keratin Fiber Sheath
Hair fibers may have a unique, non-protein sheath not previously identified.
research A genetic electrophoretic variant of high-sulfur hair proteins for forensic hair comparisons. II. Practical application of electrophoretic analysis of hair protein to forensic hair comparisons.
Electrophoresis can effectively analyze hair proteins for forensic use, even after cosmetic treatments and up to 2 years of weathering.
research Considering the risk of a coloring shampoo with the function of gray hair cover cosmetology and skin barrier: A systematic review
Coloring shampoos for gray hair may cause gene mutation, reproductive issues, and skin damage, needing stricter regulation and expert consultation.
research Decision letter: Quantitative mapping of human hair greying and reversal in relation to life stress
Hair can naturally regain color, and stress might influence greying and its reversal.
research Repigmentación del pelo canoso tras tratamiento con hormona tiroidea
Thyroid hormone (T3) may reverse gray hair by stimulating hair growth.
research [Complete loss of hair; treatment with intravenous calcium with vitamin C].
research 모발염색한 두피에 해삼 추출물 두피개선제가 미치는 영향
Sea cucumber extract reduces hair loss and improves scalp health after dyeing.
research Moniletherix
Monilethrix causes short, fragile hair with no specific treatment available.
research Reversible cutaneous hyperpigmentation and nails with white hair due to vitamin B12 deficiency.
Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.
research Premature Graying as a Consequence of Compromised Antioxidant Activity in Hair Bulb Melanocytes and Their Precursors
Gray hair may be caused by lower antioxidant activity in hair cells.
research Three Streams for the Mechanism of Hair Graying
Hair graying may be caused by stem cell depletion from stress or melanocyte damage.