Brand new, never used or tested! Use face peel 2-3 nights a week, saturate a cotton pad and sweep over clean skin. No need to rinse. Follow with serum and moisturizer. If you use Clarifying Lotion, skip it the nights you use Clarifying Do-Over Peel. Use as directed. If irritation occurs, limit frequency of use and if it persists, discontinue use and consult a physician. Avoid eye area. Use sunscreen and limit sun exposure while using and the week after.