Visible brightening and tone improvement typically begins appearing within four to six weeks of consistent daily use, with more significant results building over eight to twelve weeks. Because this formula works through gradual enzymatic and cellular mechanisms rather than aggressive exfoliation, it takes longer to show results than glycolic acid products — but it is also significantly gentler in the process. This makes it a good option for mature or sensitive skin that can no longer tolerate AHA exfoliants without irritation or excessive dryness. Patch testing before first use is strongly recommended, and starting with once-daily application (rather than morning and evening) gives reactive skin time to adjust before increasing frequency.
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