Ingredient or product comparison
Purging vs a True Reaction
The single most useful distinction when copper peptides seem to ruin your skin is whether you are purging or reacting. They look similar but mean opposite things. Timing Starts within days, fades in 4-6 weeks Persists or worsens over time Location Where you no
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- The single most useful distinction when copper peptides seem to ruin your skin is whether you are purging or reacting. They look similar but mean opposite things.
- Timing
- Starts within days, fades in 4-6 weeks
- Persists or worsens over time
- Location
- Where you normally break out
- New areas, including unusual spots
- Type
- Small bumps, surfacing congestion
- Rash, hives, burning, swelling
- Trend
- Gradually improving
- Steady or escalating
- Fix
- Continue gently, wait it out
- Stop the product
- Purging happens when active ingredients accelerate skin-cell turnover, pushing existing congestion to the surface faster. It is temporary and tends to clear within a normal skin cycle. A true reaction, by contrast, is your skin objecting to the product and will not improve with continued use.
- The decision rule: if it is concentrated in your usual breakout zones and trending better, give it a few weeks. If it is spreading, burning, swelling, or showing up in new places, stop and reassess. When in doubt, stop. See if you stop GHK-Cu what happens for what to expect after discontinuing.