A practical skincare order is cleanser, treatment, moisturiser and sunscreen in the morning. In the evening, cleanse, apply any treatment according to its instructions, then moisturise as appropriate. Prescription directions and individual product instructions take precedence over general layering rules.

This guide explains where vitamin C, peptides, hydrating serums and retinoids fit, which combinations need consideration, and how to keep a routine manageable.

The principles of skincare layering

Start with product instructions

A product’s formulation and intended use matter more than a universal chart. Some treatments require clean, dry skin; others have specific directions about accompanying products. Follow those instructions before applying general rules about texture.

Use texture as a practical guide

Lightweight serums often sit comfortably before richer creams. However, “thinnest to thickest” is a guide to application, not proof that a thicker product completely prevents every subsequent ingredient from reaching the skin.

Likewise, many products contain both water and oil components. Classifying an entire routine as simply water-based or oil-based can overlook how the finished formulations behave.

Keep sunscreen as a separate step

Apply sunscreen after your morning skincare and before makeup, following its directions. Do not mix it with serum, moisturiser or facial oil: the tested product should be applied as supplied.

Avoid unnecessary layers

A routine does not need a toner, several serums, an eye cream and a facial oil to be complete. Each additional step should have a clear purpose and suit your skin.

Morning skincare order

1. Cleanser: cleanse gently and pat dry.
2. Toner, if used: follow its instructions; this step is optional.
3. Treatment serum: for example, vitamin C or another product selected for a specific concern.
4. Additional hydration, if needed: avoid adding multiple products that duplicate the same role.
5. Moisturiser: use an amount and texture appropriate for your skin.
6. Sunscreen: apply separately and follow application and reapplication guidance.
7. Makeup, if worn: apply without unnecessarily disturbing the sunscreen layer.

Where does vitamin C go?

Follow the serum’s instructions. Obagi Professional-C Serum 20%, for example, is directed for morning application after cleansing and toning, before moisturiser and sunscreen.

This provides a clear place for its antioxidant and brightening step. It does not mean every vitamin C serum requires the same amount, the same waiting period or the same accompanying products.

The 20% formula is positioned for normal to oily and combination skin. Our Obagi Professional-C 10%, 15% and 20% comparison explains concentration choices without assuming that the highest percentage suits everyone.

Where do peptide serums go?

Peptide serums commonly sit before moisturiser, but the complete formulation determines the appropriate instructions.

Alastin Restorative Skin Complex, supplied here as the 2.0 TriHex+ formulation, is a facial peptide serum used after cleansing, with moisturiser and morning sunscreen following as needed.

Its role differs from a moisturiser even though hydration is among its functions. Read the Alastin TriHex and TriHex+ guide for the formulation background, or our peptide ingredient guide for the broader category.

Where do moisturisers and hydrating serums go?

A hydrating serum is an optional step, while a moisturiser can provide several moisturising functions within one formulation. You do not necessarily need both.

Obagi Hydrate Facial Moisturiser is an example of a moisturising step that can follow a treatment serum. In the morning, sunscreen follows separately.

If the routine feels heavy or pills, assess how many layers you are using and whether they are all needed. Do not reduce sunscreen below its directed amount to accommodate extra skincare.

Evening skincare order

1. Cleanse: remove makeup, sunscreen and surface residue. A second cleanse is an option when needed, not a requirement for everyone.
2. Apply treatment: follow the instructions for your retinoid, exfoliant or other selected product.
3. Moisturise: follow product-specific or clinician-directed guidance about placement around treatments.

An evening routine does not have to contain a retinoid. Cleansing and moisturising may be appropriate on nights when no treatment is needed or when your skin requires a simpler routine.

Layering with prescription tretinoin

Your prescribed instructions determine the amount, frequency and application order. Many tretinoin instructions specify application to dry skin; follow any waiting period given for your particular medicine.

A general layering article should not impose one universal timer or override advice about applying moisturiser before or after treatment. For background, see our beginner’s guide to tretinoin.

Do not add further active products simply because they appear in a sample routine. Discuss additions with your prescriber if the skin is already dry, irritated or peeling.

Ingredient compatibility: what matters?

Vitamin C and retinoids

A routine may separate vitamin C into the morning and a retinoid into the evening. This can simplify application, but it does not eliminate the possibility of irritation from the combined routine.

Peptides and other active ingredients

Peptides vary, and compatibility depends on the complete products. Follow manufacturer instructions rather than treating all peptide serums as chemically identical.

There is no universal waiting period that makes every copper-peptide, vitamin C or acid combination compatible. Separating products into different routines may be appropriate when their instructions advise it.

Retinoids and exfoliating acids

Combining these products can increase irritation. They do not need to appear together in a routine, and any suggested frequency should reflect the formulations and your skin’s response.

Benzoyl peroxide and retinoids

Compatibility is retinoid- and formulation-specific. Some tretinoin formulations require separation from benzoyl peroxide, while licensed products combine adapalene with benzoyl peroxide. Follow the instructions for the exact medicine rather than a blanket rule covering all retinoids.

Niacinamide and hydrating ingredients

These may already be present within a treatment serum or moisturiser. Check your existing products before adding separate layers. The ingredient name alone does not guarantee that a complete product will suit sensitive skin.

Do you need to wait between skincare products?

Use any waiting time stated in the product directions. Otherwise, allow a layer to settle sufficiently to apply the next product comfortably, without repeatedly rubbing or mixing everything together.

A routine does not need arbitrary two-, five- or twenty-minute pauses between every serum. Waiting longer also does not prove that an unsuitable combination has become suitable.

Simple routine examples

Vitamin C morning routine

1. Gentle cleansing.
2. A suitable vitamin C serum, following its directions.
3. Moisturiser if needed.
4. Sunscreen.

Peptide-focused routine

1. Gentle cleansing.
2. A peptide serum selected for the intended concern.
3. Moisturiser if needed.
4. Sunscreen when used in the morning.

Prescription-treatment evening

1. Cleansing appropriate for your skin.
2. Prescribed treatment and moisturiser in the order directed by your clinician.

These are examples of structure, not instructions to combine every product mentioned in this article.

Common layering problems

• Pilling: consider whether you are applying unnecessary layers, using more than directed or combining textures that do not sit comfortably together.
• Persistent stinging: reassess the products and seek advice rather than treating discomfort as proof that they are working.
• Too many active steps: simplify and introduce new products individually so that their effects are easier to assess.
• Changing several products at once: this makes it difficult to identify what suits your skin.
• Mixing sunscreen into another product: apply it separately instead.

Frequently asked questions

Does serum go before moisturiser?

Often, yes. However, follow the serum’s directions and any specific instructions for prescribed treatments.

Can I use vitamin C and a peptide serum in one routine?

That depends on the formulations and your skin tolerance. Check each product’s instructions. You can also use them in separate routines when appropriate.

Is a toner necessary?

No. Include one only if it has a clear role and suits the rest of your routine.

Should every serum be applied to damp skin?

No. Application instructions differ. Do not apply a general damp-skin rule to treatments that specify dry skin.

Do I need a facial oil?

No. A suitable moisturiser may provide the comfort you need. Extra oil is an optional step, not a requirement.

Can I use the same routine after laser or microneedling?

Follow your treating clinician’s aftercare instructions. Products suitable for everyday use are not automatically appropriate immediately after a procedure.

Sources consulted

• American Academy of Dermatology: Should I apply my skin care products in a certain order?
• Obagi Medical: Professional-C Serum 20% manufacturer application guidance.
• Alastin Skincare: Restorative Skin Complex with TriHex+ manufacturer application guidance.
• Epiduo 0.1%/2.5% Gel: UK Summary of Product Characteristics.

General skincare information does not replace individual prescribing or procedure-related instructions.