Last updated: August 17, 2026
These Terms of Service govern your use of the ONCE website at onceskin.com and the purchase of our custom Korean skincare routine service. The service is operated by Once Labs LLC, a California limited liability company (referred to as “ONCE,” “we,” or “us”). By using our website or purchasing our service, you agree to these terms.
Questions? Contact us at contact@onceskin.com.
ONCE provides a personalized Korean skincare routine delivered to your email. You complete a skin consultation, make a payment starting at $30, and receive your complete custom routine by email within the hour of purchase. We do not sell physical products.
Our service uses artificial intelligence to analyze your quiz responses and generate product recommendations. The routine is informational in nature and tailored to the details you provide.
ONCE is not a medical service. The skincare routines and product recommendations we provide are not a substitute for professional dermatological or medical advice, diagnosis, or treatment. If you have a skin condition, allergy, or medical concern, consult a qualified healthcare professional before following any recommendations.
By using our service, you acknowledge that ONCE is not liable for any adverse reactions, skin conditions, or outcomes resulting from following our recommendations.
You must be at least 18 years old (or the age of majority where you live) to purchase our service on your own. If you are between 13 and 17, you may use ONCE only with the consent of a parent or legal guardian: during the consultation we collect your parent or guardian's name and email address, and their consent to these Terms and our Privacy Policy on your behalf, which we record with your order. Children under 13 may not access or use ONCE under any circumstances, even with parental consent.
The fee for our service starts at $30 USD, charged as a one-time payment. All payments are processed securely by Stripe. By completing a purchase, you authorize ONCE to charge the payment method you provide. There is no subscription, no automatic billing of any kind, and no hidden fees.
Because ONCE provides personalized digital skincare recommendations built specifically for you, all sales are final. We do not offer refunds.
If you did not receive your routine, or if a technical error prevented delivery, contact us at contact@onceskin.com and we will resend it promptly. Refunds may be provided where required by applicable law.
The quality and accuracy of your personalized routine depends on the accuracy of the information you provide in the quiz. You are responsible for providing truthful and complete answers. ONCE is not responsible for recommendations that are unsuitable due to inaccurate or incomplete information provided by you.
Your personalized routine is created for your personal use only. All content on the ONCE website — including copy, design, and branding — is the property of ONCE and may not be copied, reproduced, or redistributed without permission.
To the fullest extent permitted by law, ONCE and its operators shall not be liable for any indirect, incidental, special, or consequential damages arising from your use of our service, including but not limited to skin reactions, product purchases made based on our recommendations, or failure to receive a routine due to technical issues beyond our control.
Our aggregate liability to you for any claim arising from these terms or your use of the service shall not exceed the total amounts paid by you to ONCE in the twelve months preceding the claim.
ONCE recommends third-party skincare products available for purchase at external retailers. We have no affiliation with, and receive no compensation from, any of the brands or retailers we recommend. We are not responsible for the quality, availability, pricing, or performance of any third-party products.
We reserve the right to modify, suspend, or discontinue our service at any time. We may also update these Terms of Service from time to time. The updated date at the top of this page will reflect any changes. Continued use of our service after changes constitutes acceptance of the updated terms.
These terms are governed by the laws of the State of California, USA, without regard to its conflict-of-law principles. Any dispute arising from these terms or your use of our service shall be brought exclusively in the state or federal courts located in California, and you consent to the personal jurisdiction of those courts.
If you are a consumer resident in the European Union or United Kingdom, nothing in this section deprives you of the protection of mandatory consumer-protection provisions of the law of your country of residence.
For any questions about these Terms of Service:
Once Labs LLC (operating as ONCE)
2108 N St, Ste N, Sacramento, CA 95816, USA
Email: contact@onceskin.com
Last updated: August 17, 2026
This Privacy Policy describes how ONCE collects, uses, and shares your personal information when you use our website at onceskin.com or purchase our custom Korean skincare routine service.
Who we are (data controller): ONCE is a skincare service operated by Once Labs LLC, a California limited liability company (2108 N St, Ste N, Sacramento, CA 95816, USA). For any privacy question, to exercise your rights, or to reach our data controller, contact contact@onceskin.com — we respond to all privacy requests at this address.
Questions or concerns? Contact us at contact@onceskin.com.
We collect personal information that you provide directly to us, including:
The skin information you provide may be considered sensitive health data in certain jurisdictions. We process it solely to generate your personalized skincare routine.
We use your information to:
ONCE uses artificial intelligence to analyze your quiz responses and generate a personalized skincare routine. Your quiz data is sent to Anthropic (Claude AI) for this purpose. Anthropic processes your data in accordance with their privacy policy and data processing agreement. You may opt out of AI-based processing by not submitting the quiz, or by contacting us at contact@onceskin.com to request deletion of your data.
We share your data with the following third-party service providers to operate our service:
We do not sell your personal information to third parties.
Our service providers are based in the United States. If you are located in the EU, UK, or other regions with data transfer restrictions, your data may be transferred internationally. All transfers are conducted under the European Commission's Standard Contractual Clauses or equivalent safeguards.
Skin photos are deleted automatically 30 days after upload. This is enforced by an automated job that removes both the stored image and its database record — you do not need to ask.
Other personal information (your order details, consultation answers, and generated routine) is retained for up to 2 years, or until you request deletion, so that we can re-send your routine if you ever lose the email. Payment records may be retained longer as required by law.
The skin and health details you share, and any photos you upload, may constitute special-category (health) data under the UK/EU GDPR. We process them only on the basis of your explicit consent, which we ask for at the start of your consultation — before you answer any questions or upload anything.
You may withdraw consent at any time by contacting contact@onceskin.com. Withdrawing consent does not affect processing carried out before withdrawal, and we will delete your data on request.
ONCE is not directed to children under 13, and we do not knowingly collect personal information from anyone under 13. If we learn we have collected such information, we delete it and any associated order. Customers aged 13-17 may use ONCE only with the consent of a parent or legal guardian: we collect the parent or guardian's name and email address together with a record of their consent, and we store that record with the order. A parent or guardian can review, correct, or request deletion of their child's information at any time by contacting contact@onceskin.com.
We implement appropriate technical and organizational measures to protect your personal information. However, no transmission over the internet is 100% secure and we cannot guarantee absolute security.
Depending on your location, you may have the right to:
To exercise any of these rights, contact us at contact@onceskin.com.
If you are a California, Colorado, Connecticut, Virginia, or other US state resident with applicable privacy rights, you have the right to know what personal information we collect, request deletion, and opt out of any sale of your data (we do not sell data). To submit a privacy request, email contact@onceskin.com.
You have the right to request deletion of all personal data we hold about you. To submit a deletion request, email contact@onceskin.com with the subject line "Data Deletion Request" and the email address associated with your account. We will delete your data within 30 days and confirm when complete.
Data deleted includes: your order history, skin profile, generated routines, uploaded skin photos (permanently removed from private storage), and email records. Note that Stripe retains payment records for legal and financial compliance purposes independent of our deletion.
We do not use tracking cookies or web beacons on our website.
Our service is not directed to children under 13. We do not knowingly collect information from children.
We may update this Privacy Policy from time to time. The updated date at the top of this page will reflect any changes. Continued use of our service after changes constitutes acceptance of the updated policy.
For any privacy-related questions, requests, or concerns:
ONCE
Email: contact@onceskin.com