Frequently Asked Questions

Not at all — this is the most common question we get! The violet pigment works on the same principle as purple shampoo for blonde hair. Purple is the opposite of yellow on the colour wheel, so it neutralises yellow tones on contact. The pigment is temporary and rinses away cleanly, leaving your teeth looking visibly brighter from the very first use.

PAP (Phthalimidoperoxycaproic acid) is a next-generation whitening agent that works by oxidising stain molecules in a fundamentally different way than hydrogen peroxide. It breaks down discolouration without penetrating the enamel or reaching the dentinal nerves — which is why there is zero sensitivity. It's been used in professional cosmetic dentistry for years and is now available in an at-home format through LumoSmile.

Yes. Because our formula is peroxide-free and enriched with hydroxyapatite (a remineralising agent), it is safe for regular use. Most customers use LumoSmile 3–5 times per week for the first month, then once or twice weekly to maintain results.

Key active ingredients include PAP+ (Phthalimidoperoxycaproic acid), violet colour-correcting pigment, hydroxyapatite (enamel strengthener), and vitamin E. Our formula is free from hydrogen peroxide, parabens, sulfates, and artificial fragrances.

Yes. LumoSmile is 100% cruelty-free and vegan. We do not conduct or commission animal testing at any stage of development or production.

1. Gently dry your teeth with a tissue or cloth. 2. Remove a strip from the packaging and place it purple-side-down against your upper teeth. Fold the remaining strip behind your teeth. Repeat for the lower strip. 3. Leave on for a minimum of 30 minutes, ideally overnight. 4. Peel off in the morning and rinse your mouth. That's it — no waiting before eating or drinking.

Minimum 30 minutes for the whitening effect to activate. For best results, most customers wear them overnight (6–8 hours). The longer contact time allows PAP+ to break down deeper stain molecules.

Absolutely — this is actually our recommended usage. The strips are designed to adhere securely through the night. They're comfortable to wear and dissolve-free (you peel them off in the morning).

We recommend not eating or drinking while wearing the strips — not because of safety concerns, but because food and liquid can loosen the adhesion and reduce contact time with your teeth, making the strips less effective.

For the initial whitening phase, use them 4–5 nights per week for the first 2–4 weeks. Once you've reached your desired shade, 1–2 uses per week is enough to maintain results.

No — and this is the biggest difference between LumoSmile and traditional strips. Sensitivity is caused by hydrogen peroxide penetrating the enamel and reaching the nerves. Our formula is 100% peroxide-free. Even customers with clinically diagnosed dentinal hypersensitivity report zero discomfort.

LumoSmile strips will not damage veneers, crowns, or bonding. However, they also will not whiten artificial dental work, as those materials don't respond to whitening agents the way natural enamel does. If you have significant restorations in your smile zone, we recommend consulting your dentist before use.

We always recommend consulting your healthcare provider before using any cosmetic product during pregnancy or breastfeeding. Out of an abundance of caution, we advise against use during this period.

LumoSmile is intended for adults aged 18 and over. We do not recommend use in children or teenagers, as enamel is still developing during this period.

Standard shipping takes 5–8 business days within the US. Priority shipping (available with Best Value and Ultimate bundles) takes 2–3 business days. International shipping times vary — see our Shipping Policy for details.

Yes. We currently ship to the US, Canada, UK, Australia, and most of Europe. International orders may be subject to customs duties depending on your country. We are not responsible for duties or import fees.

Yes. You'll receive a tracking number by email once your order has shipped. Allow 24–48 hours for tracking information to update after you receive your shipping confirmation.

Contact us at hello@shoplumosmile.com with a photo of the damage and your order number. We'll send a replacement immediately at no cost to you.

We offer a full 30-day money-back guarantee. If you use LumoSmile consistently for 30 days and don't see visible whitening, contact us and we'll refund your order in full — no return shipping required. See our Refund Policy for full details.

Email hello@shoplumosmile.com with your order number and a brief description of your experience. We'll process your refund within 3–5 business days. Refunds are issued to the original payment method.