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Summer skin isn't the same skin as winter. Heat increases sebum production, humidity reduces the need for heavy emollients, and sun exposure accumulates more oxidative damage in one day than a cloudy winter week. The correct summer routine isn't less effective — it's different.
What Changes in Summer
- Sebum production — increases with temperature. Rich textures and heavy creams congest
- Need for occlusives — decreases. Ambient humidity helps retain water
- Oxidative damage — multiplies with greater UV exposure, heat and pollution
- Active photosensitivity — critical: retinol/bakuchiol + AHAs require more rigorous SPF
Key Adaptations by Skin Type
Oily/Combination Skin
Replace nourishing cream with niacinamide gel. Reduce or pause night occlusives. Keep prebiotic serum — heat increases C. acnes proliferation.
Dry/Normal Skin
Keep HA serum but use a lighter cream in summer. Dry skin benefits from higher ambient humidity levels.
Sensitive Skin
Reduce AHA frequency from 2–3x/week to 1x/week. The combination of heat + sun exposure + acid increases irritation risk.
In summer, morning Vitamin C is more important, not less. It neutralises the additional free radicals generated by greater UV exposure.
Vitamin C Serum →SPF in Summer: The Quantity Nobody Applies
In summer, SPF reapplication is necessary if there's direct exposure beyond commuting to the office. The practical rule: more than 2 hours of direct sun → reapply SPF at midday. The Prebiotic Mist can be used to refresh skin without disturbing applied SPF.
The Prebiotic Mist in summer: calms excess heat, rebalances the microbiome disturbed by perspiration, and sets any look without adding heavy product.
Prebiotic Facial Mist →