A 100% TCA (trichloroacetic acid) peel is a very strong chemical peel used for more intensive skin resurfacing. It’s typically used to treat deep wrinkles, severe sun damage, or significant skin discoloration. Due to its potency, it's usually done by a dermatologist or skincare professional in a controlled setting. 

Here are a few things to consider :

1. Preparation : You might need to prep your skin with other treatments or products before the peel to ensure the best results and minimize side effects.

2. Recovery : The recovery time can be significant, often involving several weeks of redness, peeling, and sensitivity. During this period, you'll need to follow aftercare instructions carefully to avoid complications.

3. Results : While the results can be dramatic, it's important to have realistic expectations and understand that multiple sessions may be needed for optimal results.

If you're considering this type of peel, consulting with a dermatologist would be a good first step to determine if it's right for your skin type and goals.