How to repair and thicken the epidermis after pigmentation removal
Generally, after removing pigmentation spots, the thinning of the stratum corneum can be repaired and thickened through daily skincare, dietary adjustments, photorejuvenation, hyaluronic acid injections (mesotherapy), and microneedling treatments. If discomfort occurs, it is recommended to seek timely medical consultation at a hospital and follow standardized treatment under a doctor's guidance. Detailed explanations are as follows:

1. Daily Skincare
After removing pigmentation spots, the skin tends to be more sensitive. It is advisable to avoid using overly irritating skincare products and cosmetics, such as whitening or spot-removing products. Reduce the use of makeup to minimize skin irritation and decrease the frequency of makeup removal steps to avoid secondary damage to the skin. Additionally, choose sunscreen products specifically designed for sensitive skin or adopt physical sun protection methods such as using an umbrella or wearing a hat to reduce UV damage and enhance the skin's resistance.
2. Dietary Adjustments
After removing pigmentation spots, avoid consuming spicy and irritating foods and stay away from alcohol to prevent exacerbating skin inflammation. At the same time, eat more fresh vegetables and fruits, which are rich in vitamins and minerals that can accelerate skin metabolism and tissue repair.
3. Photorejuvenation
Photorejuvenation works by applying broad-spectrum light to stimulate collagen production and repair damaged skin tissue. The approximate cost ranges from 3,000 to 6,000 yuan per session. Improvement is generally noticeable after 1–2 weeks, although possible side effects include dryness, burns, infections, or allergic reactions.
4. Hyaluronic Acid Injections (Mesotherapy)
Hyaluronic acid injections mainly contain hyaluronic acid and are administered into the basal layer of the skin to help improve skin conditions and promote stratum corneum repair. The approximate cost is usually between 1,000 and 2,000 yuan per injection. Noticeable improvement typically occurs within 2–3 weeks, although mild side effects like redness and pain may occur.
5. Microneedling Treatment
Microneedling uses tiny needles on a roller to stimulate the skin, delivering active ingredients of nutrient solutions into deeper skin layers, promoting blood circulation, and accelerating stratum corneum growth. The approximate cost ranges from 1,000 to 3,000 yuan per session. Improvement is generally visible within 1–3 weeks, although temporary side effects such as redness and pain may occur.
During the recovery process, it is recommended to maintain proper skin hygiene and avoid scratching the affected skin with hands to prevent infection or worsening inflammation.