Is teeth whitening safe in Ireland?

Teeth whitening is generally safe for adults with healthy teeth and gums when it is done by a dentist, or with a legal product used exactly as directed. In Ireland, the HPRA advises talking to a dentist before you whiten, especially if you have any dental or medical condition. Sensitivity is the most common side effect.

The risks come mainly from three things: products that are stronger than EU law allows, whitening by people who are not dentists, and whitening teeth or gums that need a dentist first. This guide covers what the rules in Ireland say and how to whiten safely at home.

What does the law in Ireland say about teeth whitening?

Ireland follows the EU Cosmetics Regulation. Whitening products sold directly to consumers may contain or release no more than 0.1% hydrogen peroxide, the bleaching agent dentists use. Stronger products, up to 6% hydrogen peroxide, can only be supplied by a registered dentist, who must supervise the first use, and must not be used on anyone under 18. Products above 6% are banned in the EU.

The Irish Dental Association says tooth whitening is a procedure that should be carried out by a dentist. The HPRA, which regulates cosmetics in Ireland and monitors the market with the HSE's National Environmental Health Service, detained 6,849 units of whitening products in 2025 and helped remove 105 websites selling products that did not meet EU rules.

Many at-home products, including SmilePro's range sold in Ireland and across the EU, use a different whitening ingredient, PAP (phthalimidoperoxycaproic acid). Whatever you buy, look for a full ingredient list, clear safety information and a seller you can contact. The HPRA advises buying only from reputable sellers of EU-compliant products.

Are teeth whitening strips safe?

Strips that meet EU rules are generally safe for adults with healthy teeth when used as directed: the stated number of treatments, for the stated time, and not on sore or irritated gums. Risks rise if strips are left on too long, used more often than directed, or bought from sellers who do not follow EU rules.

The HPRA warns that non-compliant strips and gels are often sold online, including through social media, sometimes far above the legal limit, and that high concentrations can cause gum irritation and chemical burns. That is a good reason to choose carefully, read the instructions before your first treatment, and see a dentist first if you have any concerns about your teeth or gums.

Does teeth whitening damage enamel?

The main risk to teeth comes from products above the legal limit: the HPRA warns that high concentrations, without dental supervision, can cause tooth sensitivity, chemical burns to the gums and damage to dental restorations. SmilePro's gel and strips are formulated to be enamel safe. Follow the instructions and never exceed the stated treatment time.

If your enamel is already thin or worn, whitening is unlikely to give a good result and a dentist should look first.

Will whitening make my teeth sensitive?

Some people feel temporary sensitivity during or after whitening, often to cold, and the HPRA names sensitivity as the most common side effect. SmilePro's formula is designed to help prevent sensitivity in healthy teeth. If your teeth are already sensitive, see a dentist before whitening, as sensitivity can have a cause that needs treating first.

If you feel discomfort during a treatment, stop, rinse and pause your course. If it does not settle, speak to a dentist. You can also contact our team, who can talk you through your routine.

Who should not whiten their teeth?

The HPRA says teeth whitening products should not be used on anyone under 18. Whitening only lightens natural teeth, so crowns, veneers, dentures and implants will not change colour. If you are unsure, ask your dentist first.

SmilePro's own rules for our whitening strips:

• Not for anyone under 18.
• Not for anyone pregnant or breastfeeding.
• If you have sensitive teeth or unhealthy gums, see a dentist first.
• Do not use them if you have gum disease, an oral infection or recent dental surgery.
• Do not use them on amalgam fillings without consulting a dentist first.
• Do not use them for more than 14 consecutive days without a dentist's supervision.
• Stop and see a dentist if your gums or mouth become irritated (redness, swelling or soreness).
• Do not swallow the gel.
• Avoid direct contact of the whitening gel with your gums.
• Avoid contact with your eyes.

We also recommend waiting until braces are off, as the result can be uneven.

How to whiten your teeth safely at home

Make sure your teeth and gums are healthy, ideally at a recent dental check-up, and talk to your dentist first if you have any dental or medical condition. Buy from a reputable seller that lists every ingredient. Follow the timings exactly, never use a product more often than directed, and stop if you feel pain. Keep up normal brushing and dental visits, which also help your results last.

A short checklist before your first treatment:

• Teeth and gums healthy, no untreated problems
• Full ingredient list on the pack or product page
• Instructions read through once, start to finish
• A timer, or a light that switches itself off
• A plan for top-ups, so you are not tempted to overdo the first course

If you have a serious reaction to any cosmetic product, including a whitening product, you can report it to the HPRA.

How SmilePro approaches safety

SmilePro's gel and strips sold in Ireland and the EU use PAP and list every ingredient on the product page. The Advanced Kit's LED light switches itself off after 10 minutes, the gel is formulated to be enamel safe and to help prevent sensitivity, and the formula was developed by dental professionals. If your teeth are already sensitive, we recommend seeing a dentist first. After each treatment, wait 1 hour before eating or drinking anything except water.

Read next: Do teeth whitening strips work? and How long does teeth whitening last?

Sources

This guide is general information, not dental advice. If you have any concerns about your teeth or gums, speak to a dentist.

• HPRA (Health Products Regulatory Authority), HPRA issues safety warning to consumers on teeth whitening products, 30 June 2026.
• Dental Council of Ireland, Tooth Whitening, read 7 October 2026.
• Irish Dental Association, FAQs, "Is tooth whitening a safe procedure?", read 7 October 2026.
• SmilePro, Terms and Conditions, section 4, "Product Use and Cautions" (who should not use SmilePro products).
• SmilePro product information: Teeth Whitening Strips and Advanced Teeth Whitening Kit.