The skincare industry wants you to believe that the problem is always the product. The reality is that in most cases where ‘skincare doesn’t work’, it isn’t a problem with the product — it’s a problem with application, the order in which products are used, frequency or incompatibility. These 5 mistakes account for 80 per cent of cases.

Mistake 1: Too Many Active Ingredients at Once

Introducing retinol/bakuchiol, vitamin C, AHAs, niacinamide and peptides all at once seems to maximise results. The actual result is the opposite: cross-sensitivity that prevents you from realising what works, cumulative inflammation that cancels out the positive effects, and a skin barrier so overburdened that it starts to reject everything.

Correct protocol: one new active ingredient at a time, with a 4-week interval before adding the next one.

Mistake 2: Applying SPF before moisturiser (or vice versa)

SPF always goes on last in the morning. Any layer applied over the SPF — moisturiser, powder, foundation — dilutes the protection and reduces the actual SPF that reaches the skin. A moisturiser applied over SPF can reduce an effective SPF50 to SPF15 or less. The exception: tinted SPF that acts as a base, over which you can apply dry make-up (powder, blush).

Mistake 3: Excessive Exfoliation

Exfoliating 5–7 times a week with concentrated AHAs is one of the most effective ways to destroy the skin barrier. The signs: skin that visibly ‘glows’ but stings, persistent redness, sensitivity to products you previously tolerated, and increased compensatory oiliness. Chemical exfoliation should be limited to a maximum of 2–3 times a week, with rest periods in between.

Mistake 4: Applying to Completely Dry Skin

Humectants — hyaluronic acid, glycerine, sodium PCA — need ambient moisture to work. When applied to completely dry skin in a dry environment, they can paradoxically draw water from the deep dermal layers to the surface (where it evaporates quickly), causing dehydration. The ideal time to apply is 30–60 seconds after washing your face, whilst the skin is still slightly damp.

Mistake 5: Changing Your Routine Too Often

The skin has a cell renewal cycle of approximately 28 days. Any product needs at least one cycle to show measurable results — and many active ingredients (bakuchiol, peptides, vitamin C) require 8–12 weeks. Changing your routine after two weeks because “I’m not seeing any results” is the equivalent of giving up on a workout on the third day. Consistency is the most underrated active ingredient in skincare.

Frequently Asked Questions

How do I know if my skin barrier is compromised?

Signs: redness for no apparent reason, a stinging sensation with products you previously tolerated, skin that feels thin and reactive, flaking even with regular moisturising, sensitivity to touch. If three or more of these apply, simplify your routine immediately.

Can I combine vitamin C with niacinamide?

Yes — the myth of incompatibility has been debunked by studies conducted under real-world cosmetic use conditions. The documented reactions require temperatures and concentrations that do not occur in standard cosmetic formulations.