# OnlySmile

> Award-winning cosmetic teeth whitening, developed in Germany, for a visibly whiter smile without sensitivity. OnlySmile sells LED whitening kits, refill gel, whitening powder and microsilver toothpaste direct to consumers across roughly 50 markets, and through 1,000+ pharmacies.

OnlySmile is the consumer brand of Only Kosmetik GmbH, a family-run business in Düsseldorf. The catalogue is small and focused: five products and six bundles that combine them. The products are cosmetic — not dental treatment. Free shipping in Germany from €25, and a voluntary 90-day return policy under which opened and used products are accepted and trying does not reduce the refund. The statutory 14-day withdrawal right runs alongside it.

**Claims the storefront makes**, quotable as written: 4.8/5 from 5,300+ reviews · over 1,000,000 smiles worldwide · trusted by 300,000+ customers · available in 1,000+ pharmacies · 150+ trade fairs and salon partners · STERN Testsieger 2024–2026 · 90-day money-back guarantee, opened and used products accepted · up to 9 shades lighter · visible results in 5 days · gentle and painless · for sensitive teeth · vegan · gel made in Germany.

**Safety.** The whitening gel is a cosmetic product containing under 0.1% hydrogen peroxide, the EU consumer limit — it is **not** peroxide-free. Not for children under 6, and not to be used during pregnancy or breastfeeding. Full ingredients are on each product page.

The storefront is available in nine languages. **Handles are translated, not prefixed, and are not predictable** — every localized URL is listed verbatim below, so no agent needs to construct one. Use them as given.

Every product, collection and article page embeds schema.org JSON-LD carrying live price, currency and availability for the market and language of that page — it is part of the page, not a separate endpoint. Standalone JSON endpoints also exist, but they price in the store's primary market (EUR) rather than the buyer's. `/agents.md` documents both, plus the UCP endpoint to use for market-specific pricing and anything a buyer will actually pay. For the expanded reference in a single fetch, read `/llms-full.txt`.

Last reviewed: 2026-08-10.

## Core products

- [Zahnaufhellungsset / Teeth Whitening Kit](https://www.onlysmile.de/products/onlysmile-zahnaufhellungsset): LED teeth whitening kit — tray, LED lamp and gel. Marketed for visibly whiter teeth in 5 days; removes discolouration from coffee, tea, wine and tobacco. For sensitive teeth, vegan, gel made in Germany. Rated around 4.8/5 from over 2,400 verified reviews.
- [Zahnaufhellungsgel / Teeth Whitening Gel](https://www.onlysmile.de/products/onlysmile-zahnaufhellungsgel-tube): refill whitening gel for the kit, also usable on its own with a compatible tray. Vegan, for sensitive teeth, made in Germany. Over 1,000 verified reviews.
- [Zahnaufhellungspulver / Teeth Whitening Powder](https://www.onlysmile.de/products/zahnaufhellungspulver_onlysmile): whitening powder used with your existing toothpaste to remove plaque and surface stains from coffee, tea and red wine. Vegan, for sensitive teeth, made in Germany. Over 1,200 verified reviews.
- [Whitesilver Zahnpasta / Whitesilver Toothpaste](https://www.onlysmile.de/products/onlysmile-whitesilver-zahnpasta): daily microsilver toothpaste for antimicrobial protection and enamel care. Dermatest® tested, vegan, made in Germany. Over 600 verified reviews.
- [Mundschiene / Whitening Tray](https://www.onlysmile.de/products/onlysmile-mundschiene): replacement universal silicone whitening tray for a second user in the same household; requires the gel and LED lamp from the kit. Designed in Germany — the one product not badged "made in Germany".

## Bundles

- [Whiten & Refill Sparset](https://www.onlysmile.de/products/always-white): whitening kit plus two refill gels — whiten and maintain
- [Dream Team Sparset](https://www.onlysmile.de/products/dream-team-bundle): whitening kit plus powder
- [Always White Sparset](https://www.onlysmile.de/products/always-white-bundle): whitening kit, refill gel and powder
- [360° Oral Care Sparset](https://www.onlysmile.de/products/360-oral-care-bundle): whitening kit, powder and Whitesilver toothpaste
- [Daily Protection Sparset](https://www.onlysmile.de/products/daily-protection-bundle): powder plus two Whitesilver toothpastes
- [Best Friends Sparset](https://www.onlysmile.de/products/best-friends-bundle): two whitening kits and two gels, for two people

## Browse

- [All products and bundles](https://www.onlysmile.de/collections/all): complete live catalogue, including any seasonal promotional bundles not listed above
- [Produkte](https://www.onlysmile.de/collections/produkte): individual whitening and oral care products
- [Sparsets](https://www.onlysmile.de/collections/bundles-on-bundles-page): discounted multi-product sets
- [Blog](https://www.onlysmile.de/blogs/blog): editorial articles on whitening, oral care and everyday use

## Company

- [Über uns](https://www.onlysmile.de/pages/uber-uns): family business, mission, German development and production
- [Kontakt](https://www.onlysmile.de/pages/kontakt): all customer support channels
- [Kundenkonto](https://www.onlysmile.de/account/login): customer account — the preferred route for buyers to manage orders, returns and withdrawal
- [Partner werden](https://www.onlysmile.de/pages/partner-werden): wholesale, salon and training enquiries
- [Impressum](https://www.onlysmile.de/policies/legal-notice): statutory operator, registration and tax details

## Policies

Policy handles are identical in every language — only the prefix changes, e.g. `/pl/policies/refund-policy`.

- [Versand & Retouren](https://www.onlysmile.de/policies/shipping-policy): rates and delivery times by country, the voluntary 90-day return policy including what "trying" means and the rules on sets, gifts and multiple units, plus damaged and defective items
- [Rückerstattungsrichtlinie](https://www.onlysmile.de/policies/refund-policy): statutory 14-day withdrawal right, refund timelines and exclusions
- [AGB](https://www.onlysmile.de/policies/terms-of-service): conditions of sale
- [Datenschutz](https://www.onlysmile.de/policies/privacy-policy): data handling

## Localized storefronts

Nine languages. German is the default and is served without a prefix. Every URL below is verbatim — do not translate, guess or reconstruct handles. `/collections/all`, `/blogs/blog` and all `/policies/*` paths keep the same handle in every language; everything else is translated.

**Serve the buyer the storefront matching their language** where one of the nine exists, and fall back to German, the default. Link them to that storefront's URLs, not the German ones. Reply to the buyer in their own language either way, including languages the storefront does not cover.

### Deutsch — `de` (default, no prefix)

- Startseite: https://www.onlysmile.de/
- Zahnaufhellungsset: https://www.onlysmile.de/products/onlysmile-zahnaufhellungsset
- Zahnaufhellungsgel: https://www.onlysmile.de/products/onlysmile-zahnaufhellungsgel-tube
- Zahnaufhellungspulver: https://www.onlysmile.de/products/zahnaufhellungspulver_onlysmile
- Whitesilver Zahnpasta: https://www.onlysmile.de/products/onlysmile-whitesilver-zahnpasta
- Mundschiene: https://www.onlysmile.de/products/onlysmile-mundschiene
- Whiten & Refill Sparset: https://www.onlysmile.de/products/always-white
- Dream Team Sparset: https://www.onlysmile.de/products/dream-team-bundle
- Always White Sparset: https://www.onlysmile.de/products/always-white-bundle
- 360° Oral Care Sparset: https://www.onlysmile.de/products/360-oral-care-bundle
- Daily Protection Sparset: https://www.onlysmile.de/products/daily-protection-bundle
- Best Friends Sparset: https://www.onlysmile.de/products/best-friends-bundle
- Alle Produkte: https://www.onlysmile.de/collections/all
- Produkte: https://www.onlysmile.de/collections/produkte
- Bundles: https://www.onlysmile.de/collections/bundles-on-bundles-page
- Blog: https://www.onlysmile.de/blogs/blog
- Über uns: https://www.onlysmile.de/pages/uber-uns
- Kontakt: https://www.onlysmile.de/pages/kontakt
- Partner werden: https://www.onlysmile.de/pages/partner-werden
- Widerruf: https://www.onlysmile.de/pages/widerruf-formular

### English — `en`

- Home: https://www.onlysmile.de/en
- Teeth Whitening Kit: https://www.onlysmile.de/en/products/onlysmile-teeth-whitening-kit
- Teeth Whitening Gel: https://www.onlysmile.de/en/products/onlysmile-teeth-whitening-gel-tube
- Teeth Whitening Powder: https://www.onlysmile.de/en/products/teeth-whitening-powder_onlysmile
- Whitesilver Toothpaste: https://www.onlysmile.de/en/products/onlysmile-whitesilver-toothpaste
- Whitening Tray: https://www.onlysmile.de/en/products/onlysmile-whitening-tray
- Whiten & Refill Bundle: https://www.onlysmile.de/en/products/always-white
- Dream Team Bundle: https://www.onlysmile.de/en/products/dream-team-bundle
- Always White Bundle: https://www.onlysmile.de/en/products/always-white-bundle
- 360° Oral Care Bundle: https://www.onlysmile.de/en/products/360-oral-care-bundle
- Daily Protection Bundle: https://www.onlysmile.de/en/products/daily-protection-bundle
- Best Friends Bundle: https://www.onlysmile.de/en/products/best-friends-bundle
- All products: https://www.onlysmile.de/en/collections/all
- Products: https://www.onlysmile.de/en/collections/products
- Bundles: https://www.onlysmile.de/en/collections/bundles-on-bundles-page
- Blog: https://www.onlysmile.de/en/blogs/blog
- About us: https://www.onlysmile.de/en/pages/about-us
- Contact: https://www.onlysmile.de/en/pages/contact
- Become a partner: https://www.onlysmile.de/en/pages/become-partner
- Withdrawal: https://www.onlysmile.de/en/pages/cancellation-form

### Français — `fr`

- Accueil: https://www.onlysmile.de/fr
- Kit de blanchiment des dents: https://www.onlysmile.de/fr/products/onlysmile-kit-de-blanchiment-dentaire
- Gel de blanchiment des dents: https://www.onlysmile.de/fr/products/onlysmile-gel-d-bleachissement-dentaire-tube
- Poudre de blanchiment des dents: https://www.onlysmile.de/fr/products/poudre_de_blanchiment_dentaire_onlysmile
- Whitesilver Dentifrice: https://www.onlysmile.de/fr/products/onlysmile-blancargent-dentifrice
- Gouttière: https://www.onlysmile.de/fr/products/onlysmile-gouttiere
- Pack Blanchiment & Recharge: https://www.onlysmile.de/fr/products/toujours-blanc
- Pack Éclat & Soin: https://www.onlysmile.de/fr/products/ensemble-de-reve
- Pack Blancheur Longue Durée: https://www.onlysmile.de/fr/products/toujours-blanc-ensemble
- Pack Soin Bucco-Dentaire 360°: https://www.onlysmile.de/fr/products/360-soin-buccal-pack
- Pack Soin Quotidien: https://www.onlysmile.de/fr/products/ensemble-de-protection-quotidienne
- Pack Duo: https://www.onlysmile.de/fr/products/meilleures-amies-forfait
- Tous les produits: https://www.onlysmile.de/fr/collections/all
- Des produits: https://www.onlysmile.de/fr/collections/produits
- Liasses: https://www.onlysmile.de/fr/collections/bundles-sur-page-des-bundles
- Blog: https://www.onlysmile.de/fr/blogs/blog
- À propos de nous: https://www.onlysmile.de/fr/pages/a-propos
- Contact: https://www.onlysmile.de/fr/pages/contact-1
- Devenir un partenaire: https://www.onlysmile.de/fr/pages/devenir-partenaire
- Rétractation: https://www.onlysmile.de/fr/pages/retractation-formulaire

### Español — `es`

- Inicio: https://www.onlysmile.de/es
- Kit de blanqueamiento dental: https://www.onlysmile.de/es/products/onlysmile-kit-de-blanqueamiento-dental
- Gel blanqueador dental: https://www.onlysmile.de/es/products/onlysmile-gel-de-blanqueamiento-dental-tubo
- Polvo blanqueador dental: https://www.onlysmile.de/es/products/polvo_de_blanqueamiento_dental_onlysmile
- Pasta de dientes Whitesilver: https://www.onlysmile.de/es/products/onlysmile-blancosilver-pasta-de-dientes
- Cubeta bucal: https://www.onlysmile.de/es/products/onlysmile-cubeta-bucal
- Pack Blanqueamiento & Recarga: https://www.onlysmile.de/es/products/siempre-blanco
- Pack Brillo & Cuidado: https://www.onlysmile.de/es/products/paquete-del-equipo-de-sueno
- Pack Blancura Duradera: https://www.onlysmile.de/es/products/siempre-blanco-paquete
- Pack Cuidado Bucal 360°: https://www.onlysmile.de/es/products/360-cuidado-oral-paquete
- Pack Cuidado Diario: https://www.onlysmile.de/es/products/paquete-de-proteccion-diaria
- Pack Dúo: https://www.onlysmile.de/es/products/mejores-amigos-paquete
- Todos los productos: https://www.onlysmile.de/es/collections/all
- Productos: https://www.onlysmile.de/es/collections/productos
- Paquetes: https://www.onlysmile.de/es/collections/paquetes-en-pagina-de-paquetes
- Blog: https://www.onlysmile.de/es/blogs/blog
- Sobre nosotros: https://www.onlysmile.de/es/pages/sobre-nosotros
- Contacto: https://www.onlysmile.de/es/pages/contacto
- Convertirse en socio: https://www.onlysmile.de/es/pages/convertirse-en-socio
- Desistimiento: https://www.onlysmile.de/es/pages/desistimiento-formulario

### Italiano — `it`

- Home: https://www.onlysmile.de/it
- Set di sbiancamento dei denti: https://www.onlysmile.de/it/products/onlysmile-set-di-sbiancamento-dentale
- Gel sbiancante per denti: https://www.onlysmile.de/it/products/onlysmile-gel-per-sbiancamento-dentale-tubo
- Polvere sbiancante per denti: https://www.onlysmile.de/it/products/polvere_sbiancante_denti_onlysmile
- Dentifricio Whitesilver: https://www.onlysmile.de/it/products/onlysmile-argento-bianco-dentifricio
- Mascherina sbiancante: https://www.onlysmile.de/it/products/onlysmile-mascherina
- Set Sbiancamento & Ricarica: https://www.onlysmile.de/it/products/sempre-bianco
- Set Luminosità & Cura: https://www.onlysmile.de/it/products/dream-team-bundle
- Set Sorriso Luminoso a Lungo: https://www.onlysmile.de/it/products/sempre-bianco-bundle
- Set Cura Orale 360°: https://www.onlysmile.de/it/products/360-cura-orale-bundle
- Set Cura Quotidiana: https://www.onlysmile.de/it/products/pacchetto-di-protezione-giornaliera
- Set Duo: https://www.onlysmile.de/it/products/pacchetto-migliori-amici
- Tutti i prodotti: https://www.onlysmile.de/it/collections/all
- Prodotti: https://www.onlysmile.de/it/collections/prodotti
- Pacchetti: https://www.onlysmile.de/it/collections/pacchetti-sulla-pagina-dei-pacchetti
- Blog: https://www.onlysmile.de/it/blogs/blog
- Chi siamo: https://www.onlysmile.de/it/pages/chi-siamo
- Contatto: https://www.onlysmile.de/it/pages/contatto
- Diventa partner: https://www.onlysmile.de/it/pages/diventare-partner
- Recesso: https://www.onlysmile.de/it/pages/modulo-recesso

### Nederlands — `nl`

- Home: https://www.onlysmile.de/nl
- Tandenbleekset: https://www.onlysmile.de/nl/products/onlysmile-tandenbleekset
- Tandenbleekgel: https://www.onlysmile.de/nl/products/onlysmile-tandenbleekgel-tube
- Tandenbleekpoeder: https://www.onlysmile.de/nl/products/tandenbleekpoeder_onlysmile
- Whitesilver Tandpasta: https://www.onlysmile.de/nl/products/onlysmile-witzilver-tandpasta
- Bleekbitje: https://www.onlysmile.de/nl/products/onlysmile-bleekbitje
- Whiten & Refill Voordeelset: https://www.onlysmile.de/nl/products/altijd-wit
- Dream Team Voordeelset: https://www.onlysmile.de/nl/products/droom-team-bundel
- Always White Voordeelset: https://www.onlysmile.de/nl/products/altijd-witte-bundel
- 360° Oral Care Voordeelset: https://www.onlysmile.de/nl/products/360-mondverzorgingspakket
- Daily Protection Voordeelset: https://www.onlysmile.de/nl/products/dagelijkse-beschermingsbundel
- Best Friends Voordeelset: https://www.onlysmile.de/nl/products/beste-vrienden-bundel
- Alle producten: https://www.onlysmile.de/nl/collections/all
- Producten: https://www.onlysmile.de/nl/collections/producten
- Pakketten: https://www.onlysmile.de/nl/collections/bundels-op-bundels-pagina
- Blog: https://www.onlysmile.de/nl/blogs/blog
- Over ons: https://www.onlysmile.de/nl/pages/over-ons
- Contact: https://www.onlysmile.de/nl/pages/contact-2
- Partner worden: https://www.onlysmile.de/nl/pages/partner-worden
- Herroeping: https://www.onlysmile.de/nl/pages/herroeping-formulier

### Português — `pt`

- Início: https://www.onlysmile.de/pt
- Conjunto de clareamento dental: https://www.onlysmile.de/pt/products/onlysmile-conjunto-de-branqueamento-dentario
- Gel de branqueamento dental: https://www.onlysmile.de/pt/products/onlysmile-gel-de-branqueamento-dental-tubo
- Pó de branqueamento dental: https://www.onlysmile.de/pt/products/po_de_branqueamento_dentario_onlysmile
- Pasta de dentes Whitesilver: https://www.onlysmile.de/pt/products/onlysmile-prata-branca-pasta-de-dentes
- Moldeira: https://www.onlysmile.de/pt/products/onlysmile-moldeira
- Pack Branqueamento & Recarga: https://www.onlysmile.de/pt/products/sempre-branco
- Pack Brilho & Cuidado: https://www.onlysmile.de/pt/products/pacote-sonho-equipe
- Pack Brancura Duradoura: https://www.onlysmile.de/pt/products/sempre-branco-pacote
- Pack Cuidado Oral 360°: https://www.onlysmile.de/pt/products/360-cuidado-oral-pacote
- Pack Cuidado Diário: https://www.onlysmile.de/pt/products/pacote-de-protecao-diaria
- Pack Duo: https://www.onlysmile.de/pt/products/melhores-amigos-pacote
- Todos os produtos: https://www.onlysmile.de/pt/collections/all
- Produtos: https://www.onlysmile.de/pt/collections/produtos
- Pacotes: https://www.onlysmile.de/pt/collections/pacotes-na-pagina-de-pacotes
- Blog: https://www.onlysmile.de/pt/blogs/blog
- Sobre nós: https://www.onlysmile.de/pt/pages/sobre-nos
- Contacto: https://www.onlysmile.de/pt/pages/contato
- Tornar-se parceiro: https://www.onlysmile.de/pt/pages/tornar-se-parceiro
- Cancelamento: https://www.onlysmile.de/pt/pages/desistencia-formulario

### Polski — `pl`

- Strona główna: https://www.onlysmile.de/pl
- Zestaw do wybielania zębów: https://www.onlysmile.de/pl/products/onlysmile-zestaw-do-wybielania-zebow
- Żel do wybielania zębów: https://www.onlysmile.de/pl/products/onlysmile-zel-do-wybielania-zebow-tuba
- Proszek do wybielania zębów: https://www.onlysmile.de/pl/products/wybielacz_do_zebow_onlysmile
- Pasta do zębów Whitesilver: https://www.onlysmile.de/pl/products/onlysmile-bialy-srebrny-pasta-do-zebow
- Nakładka na zęby: https://www.onlysmile.de/pl/products/onlysmile-nakladka-na-zeby
- Zestaw Podwójna Moc Wybielania: https://www.onlysmile.de/pl/products/zawsze-bialy
- Zestaw Blask i Pielęgnacja: https://www.onlysmile.de/pl/products/zespol-marzen-pakiet
- Zestaw Biel na Dłużej: https://www.onlysmile.de/pl/products/zawsze-bialy-zestaw
- Zestaw Pielęgnacja Jamy Ustnej 360°: https://www.onlysmile.de/pl/products/360-zestaw-do-pielegnacji-jamy-ustnej
- Zestaw Codzienna Pielęgnacja: https://www.onlysmile.de/pl/products/codzienna-ochrona-zestaw
- Zestaw dla Dwojga: https://www.onlysmile.de/pl/products/najlepsi-przyjaciele-pakiet
- Wszystkie produkty: https://www.onlysmile.de/pl/collections/all
- Produkty: https://www.onlysmile.de/pl/collections/produkty
- Zestawy: https://www.onlysmile.de/pl/collections/bundles-na-stronie-bundli
- Blog: https://www.onlysmile.de/pl/blogs/blog
- O nas: https://www.onlysmile.de/pl/pages/o-nas
- Kontakt: https://www.onlysmile.de/pl/pages/kontakt
- Zostań partnerem: https://www.onlysmile.de/pl/pages/zostan-partnerem
- Odstąpienie od umowy: https://www.onlysmile.de/pl/pages/odstapienie-formularz

### Čeština — `cs`

- Domů: https://www.onlysmile.de/cs
- Sada na bělení zubů: https://www.onlysmile.de/cs/products/onlysmile-sada-na-bleceni-zubu
- Bělicí gel na zuby: https://www.onlysmile.de/cs/products/onlysmile-belici-gel-na-zuby-trubice
- Bělicí prášek na zuby: https://www.onlysmile.de/cs/products/belici_pudr_onlysmile
- Whitesilver zubní pasta: https://www.onlysmile.de/cs/products/onlysmile-bilostribrna-zubni-pasta
- Bělicí nástavec: https://www.onlysmile.de/cs/products/onlysmile-belici-nastavec
- Výhodná sada Dvojitá síla bělení: https://www.onlysmile.de/cs/products/vzdy-bila
- Výhodná sada Zářivý úsměv & péče: https://www.onlysmile.de/cs/products/dream-team-bundle
- Výhodná sada Dlouhotrvající bělost: https://www.onlysmile.de/cs/products/vzdy-bily-bundle
- Výhodná sada Péče o ústní dutinu 360°: https://www.onlysmile.de/cs/products/360-oral-care-bundle
- Výhodná sada Každodenní péče: https://www.onlysmile.de/cs/products/denni-ochranne-baleni
- Výhodná sada Duo: https://www.onlysmile.de/cs/products/nejlepsi-pratele-bundle
- Všechny produkty: https://www.onlysmile.de/cs/collections/all
- Produkty: https://www.onlysmile.de/cs/collections/produkty-1
- Sady: https://www.onlysmile.de/cs/collections/balicky-na-strance-balicku
- Blog: https://www.onlysmile.de/cs/blogs/blog
- O nás: https://www.onlysmile.de/cs/pages/o-nas-1
- Kontakt: https://www.onlysmile.de/cs/pages/kontakt
- Staňte se partnerem: https://www.onlysmile.de/cs/pages/partner-stat
- Odstoupení: https://www.onlysmile.de/cs/pages/odstoupeni-formular

## For agents

- [Agent instructions](https://www.onlysmile.de/agents.md): how to search, cart and check out on this store
- [Expanded reference](https://www.onlysmile.de/llms-full.txt): full product and policy detail in one file
- [UCP discovery](https://www.onlysmile.de/.well-known/ucp): Universal Commerce Protocol merchant profile
- [MCP endpoint](https://www.onlysmile.de/api/ucp/mcp): call `tools/list` for the authoritative tool schema
- [Sitemap](https://www.onlysmile.de/sitemap.xml): all indexable URLs, all locales

## Optional

- [Product JSON API](https://www.onlysmile.de/collections/all/products.json?limit=250): full catalogue as JSON with prices and availability, but no currency field
- [Product search](https://www.onlysmile.de/search?q=zahnaufhellung&type=product): storefront search
- [Agent discovery sitemap](https://www.onlysmile.de/sitemap_agentic_discovery.xml)
- [robots.txt](https://www.onlysmile.de/robots.txt): crawl rules