Legal
Terms of Use
These terms cover glassskinusa.com and the DewyIQ and SkinClash iPhone apps.
Last updated 2 August 2026.
What you are getting
Glass Skin USA publishes consumer education about cosmetic ingredients and labelling. DewyIQ and SkinClash are reference tools that report known properties of, and interactions between, cosmetic ingredients.
What this is not
None of it is medical advice. Nothing published here or returned by either app diagnoses, treats, prevents, or cures any condition. It is not a substitute for a dermatologist, physician, or pharmacist. Do not use it to make decisions about a medical condition or a prescribed treatment. If your skin reacts to a product, stop using it and seek professional advice.
Ingredient information is drawn from published sources and can be incomplete, out of date, or wrong for your specific skin. Formulations change without notice. Always read the label on the product in your hand.
Subscriptions
- Paid plans are auto-renewable subscriptions billed through your Apple ID.
- Apple displays the exact local price and renewal terms before you confirm.
- A subscription renews automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the period ending.
- Manage or cancel in Settings, your name, Subscriptions. Cancelling stops the next renewal; access continues until the paid period ends.
- Where a free trial is offered, any unused portion is forfeited if you buy a subscription during the trial.
- Refunds are handled by Apple under their standard policy.
Acceptable use
Do not scrape, resell, or redistribute our content as your own, attempt to circumvent usage limits or paid features, or use the apps to give medical advice to other people.
Affiliate links
Some outbound product links earn us a commission. That is disclosed beside the link itself. Commission never determines a verdict, a ranking, or a decode outcome, and no brand can pay to change one.
Liability
The site and apps are provided as is. To the fullest extent permitted by law we are not liable for indirect or consequential loss arising from their use. Nothing in these terms limits liability that cannot lawfully be limited.
Changes
We may update these terms. Material changes will be reflected in the date above. Continued use after a change means acceptance.