Which Chemicals to Avoid in Nail Products in 2025 — A Guide fromTheHillsBKK Nail Salon Bangkok

At TheHillsBKK Nail Salon Bangkok, we’re committed to using nail products that are not

only beautiful but also safe for you, for our nail technicians, and for the planet. As cosmetic

science advances and regulations become stricter, certain ingredients that used to be

common in nail polishes, gels, acrylics, and removers are now under scrutiny. In this blog,

we’ll explain which chemicals are raising red flags in 2025, why they’re concerning, and

Why It’s More Important Now Than Ever

The European Union has recently banned TPO (trimethylbenzoyl diphenylphosphine

oxide) in gel nail polishes, classifying it as a substance that may be carcinogenic, mutagenic, or toxic for reproduction.

Nail product safety is under increasing global focus due to health risks for frequent users

and salon workers.

Top Chemicals to Avoid in Nail Products (2025)

Below are ingredients commonly found in nail care products that you should try to avoid.

TPO (Trimethylbenzoyl diphenylphosphine oxide)

Where used: Gel nail polishes, photoinitiators under UV/LED lamps

Risks: Banned in EU due to carcinogenic, mutagenic, and reproductive toxicity.

Safer Alternatives: TPO‑free gel formulas; alternative initiators; traditional polish.

Toluene, Dibutyl Phthalate (DBP), Formaldehyde

Where used: Nail polish, polish hardeners, acrylic nails Risks: Reproductive harm, respiratory irritation.

Safer Alternatives: Labels stating '3‑free' or '5‑free' formulas.

Acrylates and Methacrylates (MMA, EA)

Where used: Acrylic nails, artificial powders/resins

Risks: Allergic dermatitis, respiratory irritation.

Safer Alternatives: Use safer resins, proper ventilation, alternatives.

Phthalates

Where used: Plasticizers, fragrance carriers

Risks: Endocrine disruption, reproductive harm.

Safer Alternatives: Phthalate‑free labeling, safer plasticizers.

Formaldehyde & releasers

Where used: Acrylics, nail hardeners, preservatives

Risks: Known irritant, potential carcinogen.

Safer Alternatives: Formaldehyde‑free nail hardeners.

Strong Solvents (Toluene, Acetone)

Where used: Removers, adhesives

Risks: Skin dryness, respiratory irritation.

Safer Alternatives: Gentler non‑acetone removers; ventilation.

Heavy Metals (Lead, Chromium, Nickel)

Where used: Pigments in polishes/gels

Risks: Allergic reactions, systemic toxicity.

Safer Alternatives: Certified pigments; tested formulas. New & Emerging Nail Product Safety Trends in 2025

Global regulatory changes, such as the EU ban on TPO, are reshaping gel nail formulas.

Worker exposure is being studied more ventilation, protective gear, and safer productsare key.

Growth of 'n‑free' polishes (3‑free, 5‑free, up to 10‑free) and demand for transparent

fragrance disclosure.

What to Look for Instead: Safer Nail Products in Nail Salon Bangkok

At TheHillsBKK Nail Salon Bangkok, we prioritize:

'Free‑from' nail formulas (no TPO, DBP, toluene, or harsh acrylates).

Clean ingredient lists with safer solvents.

Transparent fragrance disclosures.

High pigment quality (no heavy metals).

Worker and client safety: proper ventilation, protective gear, and careful application.

Tips for Clients: How to Protect Yourself

Ask your salon about ingredients and request 'free‑from' products.

Ensure correct curing times with LED/UV gel lamps.

If sensitive, opt for non‑acetone removers.

Take care of nails post‑treatment: moisturize cuticles, avoid peeling gels. At The Hills, we stay ahead of industry trends and ensure that the products we use are free from harmful chemicals, focusing on both your beauty and wellness. Our serene and rejuvenating space invites you to experience the fusion of luxury and nature, where we take every precaution to create a safe environment for both our clients and staff.

As part of our dedication to your health, we’re continuously aware of the latest developments in cosmetic safety. In line with this, we avoid using harmful chemicals commonly found in nail care products. Whether you’re looking for a classic manicure or trendy gel nails, rest assured that our services are based on the highest safety standards.

For inquiries or to book your appointment, feel free to contact us:

📞 Call: +66850000557 💬 Whatsapp: +6650000557📝 Line: @thehills 📧 Email: thehillsbkk@gmail.com