How to Build a Skincare Routine From Scratch: The Evidence-Based Approach

The problem with most skincare advice

Search for “how to build a skincare routine” and you will find two extremes: minimalist advice that says “just use cleanser, moisturiser, and sunscreen” (true but unhelpful when you have specific concerns), and 10-step routines that introduce more products than most people need, can afford, or will consistently use.

The evidence-based middle ground is more nuanced and more useful: start minimal, add targeted actives for your specific concern, and resist the urge to add more than you need.

The universal foundation (everyone needs this)

Regardless of age, skin type, or concern, the evidence supports three non-negotiable steps. Everything else is built on top of this foundation.

Step 1: Gentle cleanser. Removes dirt, excess sebum, sunscreen residue, and environmental pollutants. Fragrance-free, non-stripping, pH-balanced (5.0–5.5). Foaming cleansers are fine for oily skin; cream or oil cleansers for dry or sensitive skin. If skin feels tight after cleansing, your cleanser is too harsh.

Step 2: Moisturiser. Maintains the skin barrier, reduces transepidermal water loss (TEWL), and provides a base for active ingredients. Look for ceramides, cholesterol, and fatty acids — these mimic the skin’s natural lipid barrier. Apply to slightly damp skin for better absorption.

Step 3: Sunscreen SPF 30+ (morning). The single most evidence-backed step in any routine. Sunscreen prevents the majority of photoageing, hyperpigmentation, and skin cancer risk from UV exposure. Apply as the last step of your morning routine, before makeup if applicable. Reapply every 2 hours of direct sun exposure.

That is the complete foundation. If you have no specific concerns and just want healthy skin, you can stop here and be ahead of most people.

Adding your first active ingredient

Once your foundation is stable and comfortable for 2–4 weeks (no irritation, no dryness, no reactivity), consider adding one targeted active based on your primary concern.

One active at a time. This is the single most important rule. If you add two products simultaneously and experience a reaction, you cannot identify the cause. Wait 2 weeks between each new introduction.

For acne and breakouts

Start with azelaic acid 10% in the evening. It is anti-inflammatory, antibacterial, reduces pigmentation from old spots, and is one of the best-tolerated actives for acne. If you need additional pore clearance, add salicylic acid 2% 2–3 times per week after establishing tolerance. See the full Acne Protocol for a complete plan.

For pigmentation and dark spots

Start with a vitamin C serum (10–15%) in the morning under sunscreen. It provides antioxidant protection and gradual brightening. In the evening, azelaic acid or alpha arbutin targets pigmentation through different mechanisms. See the full Pigmentation Protocol.

For wrinkles and ageing

Start with a retinoid — the most evidence-backed anti-ageing topical. Begin with retinol 0.25–0.3% two nights per week and increase gradually. In the morning, a vitamin C serum provides antioxidant protection. See the full Anti-Ageing Protocol.

For sensitive or reactive skin

Start with niacinamide 4–5% — the gentlest effective active. It supports the barrier, reduces inflammation, and is tolerated by almost everyone. If you need calming support, centella asiatica is an excellent addition. See the full Sensitive Skin Protocol.

The supplement layer (what most sites miss)

This is where DermaProtocol differs from every other skincare site. Your skin is an organ, and like all organs, it functions best when systemic nutrition is adequate. Two supplements have broad enough evidence to be worth considering alongside any skincare routine:

Vitamin D (1,000–2,000 IU daily) — If you wear daily sunscreen (which you should), you are likely reducing your skin’s vitamin D synthesis by over 95%. Supplementation resolves this paradox without compromising sun protection. (Read the full article on the sunscreen-vitamin D paradox.)

Omega-3 (1–2g EPA+DHA daily) — Supports skin barrier lipid composition from the inside and reduces systemic inflammation. Particularly relevant for inflammatory conditions (acne, rosacea) and dry/barrier-compromised skin.

Beyond these two, additional supplements depend on your specific concern and are covered in each protocol page.

The order of application

Products are applied from thinnest/lightest to thickest/heaviest consistency, with a few specific rules:

Morning: Cleanser → Water-based actives (vitamin C, niacinamide) → Moisturiser → Sunscreen

Evening: Cleanser (double cleanse if wearing sunscreen) → Treatment actives (retinoid, azelaic acid, AHA/BHA) → Moisturiser → Occlusive (optional, for barrier repair)

Common mistakes to avoid

Adding too many products too fast. The most common error. Introduce one new product every 2 weeks minimum.

Skipping sunscreen. No active ingredient can outperform consistent sun protection. Full stop.

Confusing product categories with necessities. You do not need a toner, essence, serum, ampoule, and treatment. You need a cleanser, a moisturiser, sunscreen, and 1–2 targeted actives.

Copying someone else’s routine. Their skin is not your skin. Start from your concern and build based on what the evidence supports for that concern.

Expecting overnight results. Skincare works on cellular timescales: 4–6 weeks for initial changes, 8–12 weeks for meaningful improvement, 3–6+ months for anti-ageing benefits. Consistency matters more than intensity.

Use our tools

DermaProtocol was built to make this process easier. Use the Routine Builder to generate a goal-specific AM/PM routine, check your ingredient combination with the Stack Checker (which also analyses supplement-topical interactions), and explore the Ingredient Library for detailed evidence profiles on every active mentioned in this guide.