Articles · Topic
Using products safely
Allergies, ventilation and the precautions that matter with nail and beauty products.
14 articles
Allergic to nail gel? Tell your dentist and doctor: same acrylates
An acrylate allergy from gel usually lasts for life, and the same chemicals are in white fillings, bone cement and medical devices. Tell your dentist and doctors.
5 min readEU fragrance allergen labels grow from 24 to about 80, essential oils included
EU Regulation 2023/1545 adds 56 fragrance allergens to labels, many of them essential oils. New launches comply after 31 July 2026, all shelf stock by 31 July 2028.
5 min readMercury in cosmetics must now be zero: Minamata rule and fake whitening creams
The Minamata Convention dropped its 1 ppm limit, so no mercury may be added to cosmetics, yet the Thai FDA still finds it in online whitening creams. Signs and checks.
5 min readThailand bans microneedle and spicule cosmetics from 22 May 2026
Two Thai Ministry of Public Health rules ban making, importing and selling microneedle and needle-crystal cosmetics, except dissolving patches up to 100 µm.
5 min readBiotin for hair and nails: what the evidence says, and why it can skew lab tests
Evidence for biotin and hair or nails is thin outside deficiency and a few conditions. High doses can skew blood tests, so the FDA warns. Ask a doctor first.
5 min readCosmetic shelf life: the PAO symbol, expiry dates, and when to bin mascara
What the open-jar 6M and 12M symbol means, how it differs from an expiry date, shelf life before opening, signs a product has gone off, and why eye products go first.
5 min readPatch test new products: where, how long, and which reactions mean stop
Test a new product on your skin first: inner forearm or behind the ear for 24-48 hours, or twice a day for 7-10 days. How to read the result and when to see a doctor.
5 min readHow to read a cosmetic ingredient list: INCI order, fragrance, allergens
Ingredients run from most to least down to the 1% line, parfum can hide dozens of substances, common allergens, and how to check a Thai FDA notification number.
6 min readCleaning and disinfecting nail tools, even if you are the only one using them
Clean first, then disinfect. Which solutions, how long to soak, what is single-use, how to store tools dry, and why your own nails carry germs you do not want to spread.
6 min readWhy gel burns in the lamp, and how many seconds each layer really needs
What a heat spike is, why thick layers and thin nails get hotter, what a low-heat mode does, a cure-time range table by gel type, and what to do when it burns.
7 min readNail chemicals and ventilation: acetone, monomer, filing dust and uncured gel
Acetone, acrylic monomer, filing dust and uncured gel: the hazard of each, how to ventilate at home, which gloves and masks actually help, and how to store it all safely.
7 min readNail changes worth a doctor's visit: what to notice and why not to gel over them
Dark streaks, lifting nails, red swollen skin, colour changes, thickening: how to notice them, what to do before the appointment, and why covering them is a mistake.
6 min readHow to remove gel safely: file the top coat, soak in acetone, never peel
Step-by-step soak-off removal with real times, how to wrap foil, how builder, polygel and hard gel come off by filing, what never to do, and acetone precautions.
7 min readGel nail allergy: warning signs, HEMA, and how to lower the risk
Gel nail allergies come from acrylates such as HEMA touching skin again and again. The warning signs, how they differ from irritation, and how to apply gel more safely.
4 min read