I LOVE this product!! I've worked with a medical esthetician for years and have had intense treatments, that work! But this just means this home care, self care product is effective enough, yet gentle! It did tingle at first, but I wasnt red or burning, so with proper hydration - and this contains Hyaluronic Acid, which is a MUST with AHAs - I continued and it subsided. Best of all within about a month, my entire face is less red and with significantly fewer breakouts and irritations. This is excellent for exfoliation and hydration! LOVE!!