What order should you put your skincare on in?
The cardinal rule of dermatological formulation is simple: from thinnest texture to thickest texture. Here is the biological science of why application order matters.
Aqueous Solutions First, Occlusive Lipids Last.
Formulations are vehicles engineered to deliver active molecules across the stratum corneum. Water-based serums have low viscosity and small droplet sizes. In contrast, moisturizers and oils contain occlusives (dimethicone, plant oils, squalane) that form hydrophobic films. If you apply a thick cream first, water-soluble actives cannot penetrate the lipid barrier and will simply evaporate or pill.
The Step-by-Step Sequence
Deterministic ordering from packaging scan to bathroom shelf
Cleanser
Removes sebum, desquamated cells, particulate pollution, and residual night products without stripping physiological intercellular lipids.
Aqueous Exfoliant or Toner
Low-viscosity chemical exfoliants (AHA/BHA) require direct access to keratinocytes. If applied over creams, lipid films prevent cutaneous acid penetration.
Hydrating Essence
Pre-hydrates the stratum corneum with humectants (polyols, beta-glucan, hyaluronic acid), expanding corneocytes to receive subsequent active compounds.
Targeted Active Serums
High-potency bioactives belong here. Pure L-ascorbic acid operates in the morning alongside UV defense; retinoids activate cellular turnover overnight.
Emulsion or Eye Contour
Transitional vehicle providing light lipid replenishment to delicate, sebaceous-poor areas without occluding active absorption.
Barrier Restoring Moisturizer
Contains ceramides, cholesterol, and fatty acids that seal the epidermal surface, curbing transepidermal water loss (TEWL) and buffering micro-irritation.
Sunscreen (UV Defense)
UV filters must form an unbroken, undisturbed film across the outermost stratum corneum. Applying any cream or oil over sunscreen compromises UV shielding.
Why Midday Exists in Miko
Most routine apps force an artificial “afternoon routine” filled with extra face mists and unnecessary serums. Miko refuses to pad routines: Midday exists because “reapply” needs somewhere to live. It carries sunscreen only, and it remains empty for anyone without an SPF on their shelf.
Explore Formulation Guides & Compatibility
Check molecular compatibility between active serums in your routine.
Active Catalog58 Actives Directory →Understand how direct acids, retinoids, and peptides behave on skin.
Life-State GuidancePregnancy Skincare Guide →Review commonly paused ingredients and permitted alternatives.