Timing definitely matters and there's actually good reasoning behind season recommendations. The general advice is that peels are better done in fall and winter when sun exposure is lower naturally and you're less likely to spend extended time outdoors. Your skin is more vulnerable to UV damage during the healing phase, which is why minimizing sun exposure is important. If you get a peel in summer and can't completely avoid sun, you're at higher risk for complications like hyperpigmentation. That said, you can get peels year-round if you're religious about sun protection - wearing SPF daily and avoiding direct sun. Winter is just easier because you're naturally getting less UV exposure. The important thing is committing to proper sun protection regardless of when you choose to have treatment done.