Patch Test Scheduler
Note when you dabbed on a new product and its type — get the times to check the spot and the date you’re clear to use it if nothing reacts.
Check the patch at
- Thu, Oct 1, 6:44 AM — 24 h check
- Fri, Oct 2, 6:44 AM — 48 h check
- Sat, Oct 3, 6:44 AM — 72 h check
- Sun, Oct 4, 6:44 AM — 96 h check
- Mon, Oct 5, 6:44 AM — 120 h check
- Tue, Oct 6, 6:44 AM — 144 h check
- Wed, Oct 7, 6:44 AM — 168 h check
A patch test lowers risk but can’t rule out every reaction. At the first sign of redness, itching, swelling or stinging, wash the product off and do not use it again. See a doctor or dermatologist if a reaction is severe or does not settle.
Natural doesn’t mean reaction-proof
Plant oils, essential oils, and botanical extracts are wonderful ingredients — and, like any active, some skin doesn’t agree with some of them. “Natural” is no guarantee against irritation or allergy. A patch test is the small, patient step that catches a problem on your forearm instead of your face, and it costs nothing but a week or so of attention.
The trick is remembering to check at the right moments. This scheduler sets those check-ins — a daily look across the American Academy of Dermatology’s 7 to 10 day window — and marks the date you can bring the product into your routine with confidence.
Frequently Asked Questions
How do I patch test a new product?
Apply a small amount to a discreet, easy-to-watch spot — the inner forearm or behind the ear — and leave it. Don't wash the area for a while, and repeat the application as you would in normal use if it's a leave-on product. Watch for redness, itching, swelling, or stinging over the test window. The scheduler sets the times to check and the date you're clear if nothing appears.
How long should a patch test run?
The American Academy of Dermatology advises applying the product to a quarter-sized test spot twice a day for 7 to 10 days, because some reactions, such as allergic contact dermatitis, build slowly with repeated contact. The tool offers a 7-day standard test and a 10-day test for actives or sensitive skin, and lays out a daily check across each. If a reaction appears, wash the product off, do not use it again, and see a dermatologist if it is severe or does not settle.
Does a clear patch test guarantee I won't react?
No. Patch testing meaningfully lowers the odds of a bad surprise on your face, but it can't rule out every reaction — sensitivities can develop over time, and a full-face application involves more product and more delicate skin. Introduce one new product at a time so that if something does flare, you know the cause.
Is this medical advice?
No. This is a scheduling aid based on common patch-testing guidance, not medical or dermatological advice. If you have known allergies, sensitive or compromised skin, or you're using prescription treatments, follow professional guidance. Stop at the first sign of irritation and seek help for serious or persistent reactions.
Scheduling aid only, not medical or dermatological advice. A patch test lowers risk but can’t rule out every reaction. Stop at the first sign of irritation and seek professional help for serious or persistent reactions.