Retinol is known as a "setting agent" in skincare; when used correctly, it addresses many concerns such as fine lines, wrinkles, blemishes, and cell renewal. When used incorrectly, it can cause irritation, peeling, and damage to the skin barrier.

Here are the 5 most common mistakes and recommendations for correct use.

1. Starting with a Very High Concentration

Even 1% retinol formulations are sold online. According to clinical data, a retinol concentration of 0.25-0.5% is sufficient for most users. Higher concentrations do not proportionally increase efficacy but multiply the risk of irritation.

Maxel JU Retinol Serum contains 0.5% retinol with a gradual release formulation — a tolerable dose sufficient for efficacy.

2. Using Every Day (Initially)

If you're new to it, start with a small amount 2-3 nights a week. As your skin tolerates it (usually after 2-4 weeks), you can increase the frequency of use. This period is called "retinization"; the skin gets used to retinol.

3. Not Using Sunscreen

Retinol increases the skin's sensitivity to the sun. Even if not used during the day, skin that uses retinol in the evening will be more sensitive to morning sun. SPF 30+ is the minimum standard, SPF 50+ is ideal.

Maxel JU 50+ SPF Sun Protection Cream was designed for this combination.

4. Neglecting the Barrier

Retinol is an effective cell regenerator but stresses the barrier. Combine products containing niacinamide, ceramides, and panthenol with retinol.

Maxel JU Hyaluronic Acid Serum or Hydrating Toner, when used with retinol, protects the barrier.

5. Expecting Results Within One Week

According to clinical data, retinol shows visible effects in 8-12 weeks. Don't say "nothing happened" and give up after a week. Consistency is everything.

Conclusion

Retinol is a powerful active but not a "more is more" ingredient. Low concentration + high consistency + barrier support = results.