SKINLUMIS
Defending · August

Your Summer Skin Intelligence.

Peak UV and heat. Oxidative load is at its highest. Sweat, sebum, and SPF film all collide. Pigmentation pathways are maximally active.

Introduce

Hero ingredients for summer

  • Zinc oxide SPF
  • Vitamin C + E + ferulic
  • Niacinamide
  • Tranexamic acid
  • Green tea polyphenols
  • Salicylic acid (oily skin only)
  • Lightweight hyaluronic
Retire

Lighten up these ingredients

  • Strong retinoids (cycle to alternate nights or pause)
  • Thick creams and balms
  • Pure essential oil blends (photosensitizing)
  • Heavy occlusive sleep masks
Morning routine shift

Antioxidant serum (vitamin C or polyphenol stack) → lightweight moisturizer → SPF 50 broad-spectrum. Reapply SPF every 2 hours outdoors.

Evening routine shift

Cleanse thoroughly, double cleanse if wearing SPF + makeup. Pulse retinoid to 2x/week. Lead with hydration + barrier repair, not heavy creams.

Environmental protection

UV, heat, sweat, sea salt, chlorine. SPF 50 daily, reapply every 2 hours outside. Rinse face after sweating instead of re-cleansing.

SPF guidance

SPF 50 broad-spectrum, daily, non-negotiable. Reapply every 2 hours outdoors. After swimming, towel down and reapply immediately.

Supplements
  • · Astaxanthin 4–6 mg/day (potent oral photoprotection)
  • · Vitamin C 1000 mg/day
  • · Polypodium leucotomos 240 mg/day (oral UV protection)
  • · Magnesium 300 mg/day (sweat replacement)
August's focus

Repair summer damage

Late summer skin shows pigment, dehydration, sometimes inflammation. Don't wait for autumn, start tranexamic acid, niacinamide, peptides, and gentle barrier repair now.

Action steps
  1. 01Tranexamic acid morning + evening
  2. 02Peptide serum at night
  3. 03Hydration mask once a week
  4. 04Maintain SPF 50, UV is still high
Hero ingredient
Peptides
Open the library →
Seasonal Library

Editorial guidance, tuned to summer.

Year-round calendar

Twelve months of skin focus.

January
Barrier repair and hydration recovery
Ceramides
February
Antioxidant loading before spring
Vitamin C + E + Ferulic
March
Transition, lightening up the routine
Niacinamide
April
AHA introduction and renewal
Lactic Acid
May
Brightening and pigmentation prevention
Tranexamic Acid
June
Oil control and SPF maximum
Zinc Oxide
July
Antioxidant defense and heat management
Astaxanthin
August · now
Repair summer damage
Peptides
September
Autumn transition protocol
Ceramide NP
October
Reintroduce heavier actives
Retinal
November
Barrier fortification begins
Squalane
December
Maximum barrier protection
Petrolatum
Ingredient rotation

What to use, when.

Spring
Use
  • · Niacinamide
  • · AHA exfoliants (low %)
  • · Lightweight hyaluronic acid
  • · Antioxidants (vitamin C, E, ferulic)
Retire
  • · Heavy occlusives
  • · Thick winter creams
  • · Intense barrier oils
Summer
Use
  • · Zinc oxide SPF
  • · Vitamin C + E + ferulic
  • · Niacinamide
  • · Tranexamic acid
Retire
  • · Strong retinoids (cycle to alternate nights or pause)
  • · Thick creams and balms
  • · Pure essential oil blends (photosensitizing)
Autumn
Use
  • · Retinal / retinol
  • · AHA exfoliants (lactic, glycolic)
  • · Tranexamic acid
  • · Ceramides
Retire
  • · Lightweight gel moisturizers (move toward creams)
  • · High % BHA daily use
  • · Pure clay masks (too drying as humidity drops)
Winter
Use
  • · Ceramides (NP, AP, EOP)
  • · Cholesterol
  • · Squalane
  • · Shea butter
Retire
  • · High % AHA / BHA daily
  • · Strong retinoids (drop to alternate nights or pause)
  • · Foaming cleansers (especially sulfate-based)
Coming up

Summer → Autumn

A 4-week transition protocol. One change per week, the right way to switch seasons without triggering a barrier flare.

01

Week 1: switch gel cream to ceramide cream

02

Week 2: reintroduce retinoid at 2 nights/week

03

Week 3: AHA weekly, tranexamic acid for summer pigment

04

Week 4: full performance routine