Retinol 101: When to Start, How to Use, What to Expect

Retinol is the most studied anti-ageing ingredient in skincare. It's been used by dermatologists for over fifty years, with thousands of clinical studies supporting its ability to smooth fine lines, fade pigmentation, refine texture, and treat acne. But it's also the most misused. Start too strong, too fast, and you end up with a flaky, raw face and the conviction that retinol 'doesn't work for you'. Done properly, it's transformative — and entirely worth the patience.

What retinol actually does

Retinol is a vitamin A derivative. When you apply it, your skin converts it to retinoic acid, the active form, which signals your skin cells to behave more like young cells: turning over faster, producing more collagen, and producing less melanin in response to inflammation. The visible result over months is smoother, brighter, more even skin with fewer fine lines and less pigmentation.

The retinoid family, ranked

From gentlest to strongest: bakuchiol (a plant-based retinol alternative, no irritation), retinyl palmitate (very gentle, slow), retinol (the standard over-the-counter option), retinaldehyde (faster-acting, less irritating than retinol), and tretinoin (prescription, the strongest). Most people should start with a 0.1% to 0.3% retinol or a retinaldehyde, both of which are widely available at justask.

When to start

Mid-to-late twenties is the typical entry point, but there's no hard rule. If you're in your early twenties with active acne or post-acne marks, a low-percentage retinol can help. If you're in your forties starting fresh, you can still see significant benefit. The ingredient works regardless of when you begin.

How to use it, step by step

Week 1–2: Apply twice a week at night. Cleanse, wait until skin is fully dry, apply a pea-sized amount across the entire face, follow with moisturiser. Week 3–4: increase to three times a week. Week 5 onwards: nightly, if your skin tolerates it. If you experience irritation, drop frequency back down. The 'sandwich method' — moisturiser, then retinol, then moisturiser again — is gentler for sensitive skin and works almost as well.

What to expect

Weeks 1–6: a 'purge' is common, with small breakouts as accelerated cell turnover brings clogs to the surface. Mild flaking, dryness, and redness are normal. Push through unless your skin feels genuinely raw. Weeks 6–12: skin starts looking smoother and brighter. Months 3–6: visible fading of pigmentation and softening of fine lines. Six months to a year: real, structural improvement.

What to pair it with, and what to avoid

Pair retinol with ceramide moisturisers, peptides, hyaluronic acid, and gentle cleansers. Avoid using it the same night as exfoliating acids (AHA, BHA) or vitamin C — the combination is too aggressive for most skin. Always wear SPF 50 the next morning; retinol increases UV sensitivity and unprotected sun exposure will undo the work.

Special considerations for African skin

Melanin-rich skin is more prone to post-inflammatory hyperpigmentation if retinol causes irritation. The slow start is even more important. Start with the lowest percentage, sandwich it with moisturiser, and ramp up gradually over months rather than weeks. The reward — even tone, faded marks, smoother texture — is well worth the patience.

Browse retinol-friendly routines and beginner-strength options at justask, Carrefour Macon, Douala.