Based on the search results, here is the information on curled toenails, product details, positive and negative ingredients or materials:
Curled Toenails
- Curled toenails can be caused by a nail deformity called pincer toenails, which causes over-curvature in the nail.
- Curled toenails can also be caused by other factors such as fungal infections, autoimmune disease, medications, diabetic toenail, and genetics.
- Curled toenails can lead to ingrown toenails, which can cause infections and be dangerous for people with diabetes or circulation issues.
Product Details
- Nail products contain potentially harmful ingredients, but are allowed on the market because they are safe when used as directed.
- Nail products intended to treat medical problems, such as nail fungus, are drugs.
- Some common nail product ingredients that people often ask about, or that raise special safety concerns include acetonitrile in artificial nail removers, toluene sulfonamide/formaldehyde resin (TSFR) in some nail polishes, and HEMA and Di-HEMA Trimethylhexyl Dicarbamate in nail products.
- The active ingredient in nail hardeners is up to 5% formaldehyde, which can trigger allergic contact dermatitis in sensitized individuals.
Positive Ingredients or Materials
- Keratin is a protein present in nails and hair that gives strength to the hair.
Negative Ingredients or Materials
- Formaldehyde in nail hardeners can trigger allergic contact dermatitis in sensitized individuals.
- Acetonitrile in artificial nail removers and toluene sulfonamide/formaldehyde resin (TSFR) in some nail polishes can cause allergic reactions.
- HEMA and Di-HEMA Trimethylhexyl Dicarbamate in nail products can cause sensitization.
