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GlossaryFormaldehyde

colorless gas used in industrial applications and hair treatments

Formaldehyde, also known as methanal, is a colorless, strong-smelling gas commonly used in various industrial applications, including the production of resins, textiles, and disinfectants. It is also a known carcinogen and can cause respiratory issues and skin irritation upon exposure. In the context of hair treatments, formaldehyde is sometimes used in keratin treatments to straighten hair, but its use is controversial due to potential health risks.

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research Formaldehyde Replacement with Glyoxylic Acid in Semipermanent Hair Straightening: A New and Multidisciplinary Investigation

23 citations, June 2014 in “International Journal of Cosmetic Science”

Glyoxylic acid is a safer alternative to formaldehyde for hair straightening and effectively changes hair structure.

research Brazilian Keratin Hair Treatment: A Review

40 citations, June 2013 in “Journal of cosmetic dermatology”

Brazilian keratin treatments can straighten hair but may contain harmful formaldehyde.

research Mechanical Characterization of Curly Hair: Influence of Nonconventional Hair Straightening Treatments

13 citations, March 2017 in “Skin Research and Technology”

Formaldehyde damages curly hair more than glyoxylic acid.

research Psoriasiform Skin Reaction Due to Brazilian Keratin Treatment

2 citations, May 2022 in “International Journal of Trichology”

Brazilian Keratin Treatment can cause skin reactions like redness and scaling, possibly due to formaldehyde.

research Hair Care Cosmetics Regulation in Different Countries: A Comparative Study

2 citations, January 2019 in “Applied clinical research, clinical trials and regulatory affairs”

Different countries have regulations to ensure the safety of hair care products, with some recalling hair straighteners due to high formaldehyde.

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community allergen of the year award list(2000-2023).most allergens are in every day shampoos and skin care.

in Research/Science 4 upvotes 2 years ago

The post discusses allergens in everyday shampoos and skincare products, listing yearly allergens from 2000 to 2023. It suggests that these chemicals might contribute to acne and hair loss.

community Is this a good shampoo? XHC Ginger Shampoo. £1 a bottle

in Product 1 upvotes 4 years ago

The conversation is about evaluating the effectiveness and affordability of XHC Ginger Shampoo for hair loss. The user lists the ingredients and expresses that it looks promising and inexpensive.

community What do you guys use before applying keto?

in Chat 6 upvotes 1 month ago

Keto 2% can dry out hair, especially wavy or curly types. Users suggest using oils like olive, coconut, or argan, and following up with a good conditioner or hair mask to maintain hair health.

community Organic Self Tanner on bald Scalp?

in Shaved/buzzed 1 upvotes 2 years ago

The user is using topical minoxidil and finasteride, along with daily derma rolling, and is considering using an organic self-tanner on their shaved scalp. They seek advice on whether the self-tanner's ingredients could harm hair regrowth.

community 18 month hairline progress pictures.

in Progress Pictures 821 upvotes 2 months ago

A user's 18-month hairline progress using minoxidil, finasteride, Nizoral, microneedling, and scalp massage. They share their routine and discuss treatment effectiveness and photo order confusion.

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