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    AI Overview
    Chemicals to avoid in Nail Polishes - A Perfect Blend ...
    Aldehyde resins, specifically Tosylamide/Formaldehyde Resin (TSFR), are key film-forming agents in traditional nail polishes that provide high gloss, strong adhesion to the nail plate, and improved durability against chipping. While they improve performance, they are known potential allergens and have been largely phased out of "5-free" or "10-free" formulations due to health concerns. 
    Key Details About Aldehyde Resin (Tosylamide/Formaldehyde Resin) in Nail Polish: 
    • Function: It is an adhesive polymer that helps the polish harden, dry quickly, and stick to the nail, often found in lacquers and top coats.
    • Controversy and Allergies: TSFR is recognized as a potent sensitizer and a common cause of allergic contact dermatitis, leading to symptoms like redness, itching, and rashes.
    • Usage in Formulations: According to a study on PubMed, it has been used in concentrations ranging from 0.08% to 11.0% in traditional polishes.
    • Alternatives: Modern, "non-toxic" polish brands often replace formaldehyde resin with safer, non-allergenic alternatives such as polyester resin or polyurethane.
    • Identification: It is often labeled as Tosylamide/Formaldehyde Resin on ingredient lists. 
    Alternatives and Safety: 
    • "Free" Classifications: Look for 5-free, 7-free, or 10-free labels, which ensure the product is free of formaldehyde and formaldehyde resin.
    • Regulations: While some studies indicate that formaldehyde levels from resin in salons are low enough not to require consumer warnings in certain regions, it is still generally avoided in newer, healthier formulas. 
    Note: Some brands, such as OPI and Essie, have historically used these resins in some formulations, though many lines have moved toward cleaner alternatives. 
    • Nail Polish Products Containing Tosylamide/ Formaldehyde Resin
      Some nail polishes contain formaldehyde resin and tosylamide. These products are considered a moderate hazard: * **OPI Classic Sha...
      Environmental Working Group
    • Nail Care Products - FDA
      Oct 15, 2024 — For example, toluene sulfonamide/formaldehyde resin (TSFR) is used in some nail polishes to make the coating tough and resilient. ...
      U.S. Food and Drug Administration (.gov)
    • Allergenic ingredients in nail polishes - PubMed
      The study comprised 20 brands and 42 samples. All the nail polishes analysed contained allergenic toluene sulfonamide formaldehyde...
      National Institutes of Health (.gov)
    • A look at the effects of nail polish on nail health and safety
      Nov 21, 2019 — With regard to nail polish, a commonly used term is “five-free.” Five-free refers to polishes that do not contain five specific in...
      Harvard Health
    • Tosylamide-Formaldehyde Resin - NailKnowledge
      Tosylamide-formaldehyde resin is a common ingredient in nail polish formulations. It is an adhesive polymer that enhances the dura...
      NailKnowledge
    • Understanding Formaldehyde Levels in Nail Salons - NailKnowledge
      Dec 16, 2024 — According to a multi-year independent scientific study, formaldehyde levels in nail salons are no different than what would be exp...
      NailKnowledge
    • Formaldehyde in "Nontoxic" Nail Polish - PubMed
      Jul 15, 2019 — Background: Nail polish is known to contain potentially hazardous chemicals that have been linked to adverse health effects after ...
      National Institutes of Health (.gov)
    • Tosylamide/Formaldehyde Resin - Contact Dermatitis Institute
      Where is Tosylamide/Formaldehyde Resin found? This substance is formed by the condensation of formaldehyde and toluenesulfonamide,
      Contact Dermatitis Institute
    • What is the composition of a nail polish? - Typology
      Apr 2, 2025 — They enhance the adherence of the polish to the nail and provide a glossy and uniform finish. The resins commonly found in nail po...
      Typology
    • Ingredients in essie Products
      at essie, we made a conscious decision to remove certain ingredients over the past few years: ethyl tosylamide, formaldehyde resin...
      essie Australia
    • Nail Polish Products Containing Tosylamide/ Formaldehyde Resin
      Some nail polishes contain formaldehyde resin and tosylamide. These products are considered a moderate hazard: * **OPI Classic Sha...
      Environmental Working Group
    • Nail Care Products - FDA
      Oct 15, 2024 — For example, toluene sulfonamide/formaldehyde resin (TSFR) is used in some nail polishes to make the coating tough and resilient. ...
      U.S. Food and Drug Administration (.gov)
    • Allergenic ingredients in nail polishes - PubMed
      The study comprised 20 brands and 42 samples. All the nail polishes analysed contained allergenic toluene sulfonamide formaldehyde...
      National Institutes of Health (.gov)
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    My Ad Center

    Web results

    Aldehyde resin for nail polish


    China AAB Industry Technology Group
    https://www.aabindustrygroup.com › aldehyde-resin-for-...
    China AAB Industry Technology Group
    https://www.aabindustrygroup.com › aldehyde-resin-for-...
    It can effectively improve adhesion, hardness, gloss, solid content of paint and fullness of coatings. It is a kind of excellent multifunctional additive to ...Read more
    Discussions and forums
    I ordered a nail strengthener, but now I saw that it has formaldehyde
    Reddit · 
    r/RedditLaqueristas
     · 6 comments
     · 1 year ago
    I ordered a nail strengthener, but now I saw that it has formaldehyde
    Reddit · 
    r/RedditLaqueristas
     · 6 comments
     · 1 year ago
    Yes formaldehyde is carcinogenic. It's also very common to find in nail polish. 3-free or 5-free options are much more available now, especially in the indie ...  More
    What benefits does formaldehyde have for fingernails?
    Quora · 
    9 answers
     · 4 years ago
    What benefits does formaldehyde have for fingernails?
    Quora · 
    9 answers
     · 4 years ago
    Formaldehyde bonds the layers of your fingernails together, resulting in stronger feeling ...  More
    Top answer · 2 votes · 4 years ago
    If there is a “benefit” the dangers far outweigh them. Formaldehyde causes irritation ...  More
    4 years ago
    Avoid Formaldehyde as much as you can. It is a dangerous compound and many people are seriously ...  More
    4 years ago
    See more
    People also ask
    What is the aldehyde in nail polish?
    Formaldehyde is used as an antimicrobial, preservative, and nail hardener in select nail products. The addition of toluene sulfonamide formaldehyde resins helps polish adhere to the nail and strengthen the coating. However, formaldehyde is a recognized carcinogen, eye irritant, and respiratory toxicant.

    Formaldehyde in “Nontoxic” Nail Polish - Sage Journals


    Sage Journals
    https://journals.sagepub.com › DER.0000000000000493
    Sage Journals
    https://journals.sagepub.com › DER.0000000000000493
    Is formaldehyde resin the same as formaldehyde?
    Some confuse a hard polymer resin called tosylamide formaldehyde resin, thinking this solid polymer is the same as formaldehyde gas. It's not even close. It can be a source of traces of formaldehyde dissolved in solution, but these are very safe levels and will not cause harm.Dec 16, 2024

    Understanding Formaldehyde Levels in Nail Salons


    NailKnowledge
    https://nailknowledge.org › blog › understanding-form...
    NailKnowledge
    https://nailknowledge.org › blog › understanding-form...
    Is MMA acrylic illegal in the US?
    In the early 1970s, the Food and Drug Administration removed the nail products containing 100 percent MMA from the market and in 2015, California's Board of Barbering and Cosmetology prohibited the use of MMA-containing nail products in licensed hair and nail salons and cosmetology schools through regulation.

    Adopted Priority Product: Nail Products Containing MMA at ...


    Department of Toxic Substances Control - CA.gov
    https://dtsc.ca.gov › scp › nail-products-containing-mma
    Department of Toxic Substances Control - CA.gov
    https://dtsc.ca.gov › scp › nail-products-containing-mma
    Why are gel nails now banned in Europe?
    The chemical was classified as "carcinogenic, mutagenic, or toxic to reproduction" by European regulators after it was found to have reproductive toxicity effects in animal studies. In the United States, TPO remains legal and unrestricted in its use and sale.Sep 5, 2025

    Why did the EU ban gel nail polish? 3 things to know - PBS


    PBS
    https://www.pbs.org › newshour › health › the-eu-has-ba...
    PBS
    https://www.pbs.org › newshour › health › the-eu-has-ba...

    Web results

    Understanding Formaldehyde Levels in Nail Salons


    NailKnowledge
    https://nailknowledge.org › blog › understanding-form...
    NailKnowledge
    https://nailknowledge.org › blog › understanding-form...
    Dec 16, 2024 — This article explores the truth behind formaldehyde use in nail products and clarifies whether it poses any genuine risk to nail professionals or clients.Read more
    Missing: Aldehyde ‎| Show results with: Aldehyde

    Adding formaldehyde to any polish. How to do this?


    Reddit · r/RedditLaqueristas
    8 comments · 5 years ago
    Reddit · r/RedditLaqueristas
    8 comments · 5 years ago
    I use to be able to purchase formaldehyde from a local pharmacy. I would put a few drops in all my polish & it really strengthens the nails & help with growth.Read more
    8 answers  ·  Top answer: I would hesitate to add formaldehyde without knowing exactly from a chemist what I was using. ...
    Nail Polish Toxicity help : r/RedditLaqueristas
    16 answers
    Oct 27, 2021
    I ordered a nail strengthener, but now I saw that it has ...
    6 answers
    Aug 24, 2024
    More results from www.reddit.com
    Missing: Aldehyde ‎| Show results with: Aldehyde

    EP1900352A1 - Nail varnish comprising a resin


    Google Patents
    https://patents.google.com › patent
    Google Patents
    https://patents.google.com › patent
    The present invention relates to a nail polish comprising an organic solvent medium, a gelling agent and at least one ketone / aldehyde resin.

    Nail Polishes: A Review on Composition, Presence of Toxic ...


    National Institutes of Health (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC11991789
    National Institutes of Health (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC11991789
    by AC de Paula · 2025 · Cited by 8 — TSFR resin is formed from a condensation reaction between p-toluene sulfonamide and formaldehyde and was introduced into nail polish in the late 1930s, being ...Read more
    Missing: Aldehyde ‎| Show results with: Aldehyde

    Aldehyde Resin A 81 Mediums, Binders & Glues


    Kremer Pigmente Online Shop
    https://www.kremer-pigmente.com › en-us › shop › 67...
    Kremer Pigmente Online Shop
    https://www.kremer-pigmente.com › en-us › shop › 67...
    This resin is suitable as a varnish for paintings. In addition, it can be used to produce pigment pastes and can be used in thermosetting paints. Aldehyde ...Read more
    €4.45 to €20.00 · In stock · 14-day returns
    Missing: nail ‎| Show results with: nail

    Nail Polish Products Containing Tosylamide


    Environmental Working Group
    https://www.ewg.org › skindeep › browse › ingredients
    Environmental Working Group
    https://www.ewg.org › skindeep › browse › ingredients
    Nail Polish Products Containing Tosylamide/ Formaldehyde Resin. Sort best to worst. FILTERS. China Glaze Nail Laquer with Hardeners, Afterglow 624.Read more
    Missing: Aldehyde ‎| Show results with: Aldehyde

    Aldehyde Ketone Resin (Melting Point 120C)


    MySkinRecipes
    https://www.myskinrecipes.com › ... › Lacquer
    MySkinRecipes
    https://www.myskinrecipes.com › ... › Lacquer
    Aldehyde Ketone Resin acts as a coating and provides shine in nail coating formulations. Use: Provides shine in the nail polish formula.

    Nail Care Products


    U.S. Food and Drug Administration (.gov)
    https://www.fda.gov › cosmetics › cosmetic-products › n...
    U.S. Food and Drug Administration (.gov)
    https://www.fda.gov › cosmetics › cosmetic-products › n...
    Oct 15, 2024 — For example, toluene sulfonamide/formaldehyde resin (TSFR) is used in some nail polishes to make the coating tough and resilient. TSFR also ...Read more
    Missing: Aldehyde ‎| Show results with: Aldehyde
    People also search for
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