Skin School · The Routine Bible

The Routine Bible

Volume Two · Progression

The optional climb beyond a complete routine — Intermediate to Advanced, gradually and the same careful way, ending at your Master week.

Volume Two of Two 2 tiers Weeks 15–40

You don't need this to have great skin — Volume One lands you at a complete, effective routine that holds beautifully on its own. This is for when your skin is fully settled and you want to push further. We climb only when your skin says it's ready.

Before you begin · Coming from Volume One

What carries over

By the end of Foundations you'd built a calm barrier, one weekly acid night, a low retinal (0.05%) twice a week, and vitamin C every morning. Volume Two builds on top of that — it doesn't replace it. The structure you learned stays exactly the same; only the strengths and the support deepen.

The same cautions apply — more so at these strengths

Not for pregnancy or breastfeeding. Anyone with a skin condition (rosacea, eczema, melasma) or on medication that affects the skin should adapt this with professional guidance. Going up is always optional — if your skin ever feels over-worked, drop back a step.

3

Intermediate

Weeks 15–26 · The complete routine
Both actives step up — staggered, never together.

Same weekly shape, but both actives step up — staggered, never together. CoQ10 joins the morning antioxidant layer, eye masks come in, gentle exfoliation moves to alternating PHA-toner / hydrating-toner mornings, and a hydrating toner returns to your nights as you wean off the retinoid buffer. This is where you arrive at a complete routine.

Retinal now
0.10%
New AM
CoQ10 + eye masks
Exfoliation
PHA-toner mornings
Nights
Buffer off, toner in
Acid night
Retinal night
Recovery night
Acid toner · PHA
Hydrating toner
Eye mask
MTWTFSS
AM
PM

Mornings alternate PHA-toner and hydrating-toner, eye masks on the hydrating mornings. Vitamin C every morning. Acid Monday, retinal 0.10% Wed & Fri, recovery between — recovery nights now carry a soothing ampoule.

What each part looks like

MorningsThe full antioxidant layer arrives
  • Cleanse
  • Toner — PHA one morning, hydrating the next · let it dry
  • Vitamin C, stronger — let it dry
  • CoQ10 — builds the antioxidant network
  • B serum eye mask — on hydrating-toner mornings
  • B/HA serum → thermal spray → emollient moisturiser → SPF
Acid nightMonday
  • Double cleanse
  • Acid — onto bare, dry skin · let it dry
  • B/HA serum → thermal spray → ceramide moisturiser
Retinoid nightsWed + Fri
  • Double cleanse
  • Hydrating toner — let it dry
  • Retinal 0.10% — let it dry · buffer only while weaning
  • B/HA serum → thermal spray → ceramide moisturiser — seal
Recovery nightsAll other non-acid nights
  • Double cleanse
  • Hydrating toner — let it dry
  • Soothing ampoule — centella, beta-glucan or cica
  • B/HA serum → thermal spray → ceramide moisturiser

Weaning the buffer — and adding the tonerComing in from Foundations, your retinoid nights still have a moisturiser buffer. Intermediate is where you teach your skin to take the retinal without it — one night at a time. Week 1, skip the buffer on one retinoid night; week 2, skip it on the other; week 3, both bufferless if all's calm; week 4, you're fully off it — the moisturiser still seals at the end, every night.

As the buffer comes off, the hydrating toner comes in on every night except acid. A word of care: the toner is hydration, not a buffer — and because hydration helps an active penetrate, dropping the cushion and adding the toner both nudge the retinal in a little harder, so change one thing at a time and go slow. In the mornings, let the toner dry fully before your vitamin C so skin isn't damp when the active lands. And if your skin starts to complain, look at your technique first — too much, too fast, or damp application — before deciding a product doesn't suit you.

Eye areaWith caution, take your serums up to the orbital bone. Your B serum eye masks go on hydrating-toner mornings — start once a week, building to every other morning.

How it builds at Intermediate

The evening rhythm holds steady here — the changes are in strength, in the mornings, and in weaning the buffer. Same dot language; only what changes is shown.

MTWTFSS
Weeks 15–16Retinal steps up to 0.10% (change-over)
AM
PM
Weeks 17–20Vitamin C strengthens, then CoQ10 joins the mornings
AM
PM
Weeks 21–22Mornings move to PHA / hydrating · eye masks begin
AM
PM
Weeks 23–26Buffer weaned off retinoid nights, hydrating toner in · complete
AM
PM

Once everything's in, consistency is the active ingredient — these weeks aren't filler, they're where results compound. Resist adding more; just run it.

✦ You've arrived — and what's next

By here you have a complete, effective routine: weekly acid, retinal 0.10% twice a week, stronger vitamin C and CoQ10 each morning, eye masks and PHA-toner mornings. A brilliant place to stay for the long term. When your skin is fully settled and resilient and you want to go further, Advanced takes you up to your Master week.

4

Advanced

Weeks 27–40 · The climb to Master
Peak strengths, one weekly repair night.

Peak retinal with its repair partners, a dedicated weekly repair night, a stronger acid and soothing ampoules — the routine I run myself. The antioxidant morning steps up from CoQ10 to idebenone. PDRN and EGF aren't extra actives competing for attention; they're repair ingredients that help your skin carry the higher strength.

Retinal peak
0.15% + PDRN
Antioxidant
Idebenone
Repair night
Weekly EGF + peptide
Finish
Week 40 · Master
Acid night
Retinal + PDRN
Recovery + ampoule
EGF + peptide repair
Acid toner · PHA / BHA
Hydrating toner
Eye mask
MTWTFSS
AM
PM

Mornings alternate a PHA or BHA toner with hydrating, eye masks every other morning. Vitamin C + idebenone daily. Acid Monday (stronger), retinal 0.15% + PDRN Wed & Fri, recovery + ampoule between, EGF repair night Sunday. Hydrating toner on every night but acid — or go bare for the deepest penetration.

What each part looks like

MorningsEye mask now every other morning
  • Cleanse
  • Toner — PHA or BHA / hydrating, alternating · let it dry
  • Vitamin C, strongest — let it dry
  • Idebenone — the top of the antioxidant network
  • B serum eye mask — on hydrating mornings
  • B/HA serum → thermal spray → emollient moisturiser → SPF
Acid nightMonday · stronger now
  • Double cleanse
  • Stronger acid — onto bare, dry skin · let it dry
  • B/HA serum → thermal spray → ceramide moisturiser
Retinoid nightsWed + Fri
  • Double cleanse
  • Hydrating toner — let it dry · or skip for bare skin
  • Retinal 0.15% — let it dry
  • PDRN — retinoid's repair partner, first
  • B/HA serum → thermal spray → ceramide moisturiser · occlusive optional
EGF repair nightSunday · never on retinoid nights
  • Double cleanse
  • Hydrating toner — let it dry
  • EGF + peptide
  • B/HA serum → thermal spray → ceramide moisturiser
Recovery nightsTue · Thu · Sat
  • Double cleanse
  • Hydrating toner — let it dry
  • Soothing ampoule — centella, beta-glucan or cica
  • B/HA serum → thermal spray → ceramide moisturiser

No buffer now — and the bare-skin optionBy Advanced your skin takes the retinal without a buffer. The hydrating toner stays on every night except acid as a comfort and hydration step. If you want the deepest, most effective delivery, you can skip the toner too and apply the retinal straight onto bare, dry skin after cleansing — the most direct route, and the most likely to bite if any sensitivity is there, so it's the version you earn.

The rhythm doesn't change because it doesn't need to — one acid night, two retinoid nights, the rest for recovery and repair. PDRN and EGF help your skin carry the higher retinal strength. The structure holds; the support deepens.

How it builds at Advanced

The evening shifts just once — a weekly repair night lands on Sunday — while strengths peak and the repair support deepens. Same dot language; only what changes is shown.

MTWTFSS
Weeks 27–28Retinal change-over to 0.15% · eye mask to every other morning
AM
PM
Weeks 29–32Peak 0.15% holds · PDRN joins the retinoid nights
AM
PM
Weeks 33–34Weekly EGF + peptide repair night joins — Sunday
AM
PM
Weeks 35–40Acid steps up · soothing ampoules on recovery · Master
AM
PM

PDRN tucks into the retinoid nights and ampoules into recovery — repair, not new actives — so the dots barely move while the strength quietly peaks.

Week 40 · The finish

You've reached Master

This is it — the complete advanced routine, fully your own. Peak 0.15% retinal twice a week with PDRN, a dedicated weekly repair night, a stronger weekly acid, soothing ampoules, and the full antioxidant morning with idebenone. It's the routine I run myself.

From here, it's maintenance. Keep it consistent, adjust with the seasons and with your skin, ease back a step any time your skin feels over-worked, and lean on it for life. You didn't rush it — you built it, one careful step at a time. That's what mastery looks like.

The rules still hold — more so at these strengths

This isn't personal medical advice: not for pregnancy or breastfeeding, and anyone with a skin condition or on medication that affects the skin should adapt with professional guidance. One active per night, never retinoid and acid together; let each layer dry before the next; one leave-on acid night a week, with daily gentle exfoliation in the PHA / BHA-toner mornings; double cleanse nightly. The hydrating toner is hydration, not a buffer — go slow whenever you change penetration. Strengths only ever rise through a gradual change-over, and going up is always optional. If your skin ever feels over-worked, drop back a step. Your skin sets the pace.

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The Routine Bible · Volume Two · Progression · 2026