Keep a record of how it went.
An active takes weeks to show you anything, and by the time you have an opinion the details are gone — which day the stinging started, whether it settled, whether you had changed anything else that week.
This is somewhere to write that down as it happens. It stays in this browser: nothing is sent to us, there is no account, and clearing your browser data clears it.
What this is not
It is not advice, and it does not tell you how long to wait or what a normal reaction looks like — follow the directions on the pack. If your skin reacts, stop using the product and speak to a doctor or pharmacist. Nothing here decides whether a product can be returned: that policy is still being confirmed with the brand, and we are not going to imply a remedy nobody has agreed to yet.
Read what is and is not confirmed about these formulations on the claims ledger.