This article is a translation of the original French article “Taches pigmentaires : et si le soleil n’était pas le seul responsable ?” and is intended for the French market. Treatments, availability and prices may differ at our London clinic.
Why does some skin mark more easily than others?
1. Melanin: a defence system that sometimes goes awry
Skin pigmentation is a natural protective mechanism. Melanocytes produce melanin to absorb and scatter UV rays, but this production can be disrupted by several factors:
- Hormones: melasma, also known as the mask of pregnancy, is linked to hormonal fluctuations (pregnancy, contraception, menopause) and is aggravated by UV exposure.
- Skin inflammation: acne, irritation or overly aggressive skincare can cause post-inflammatory hyperpigmentation, which persists long after the skin has healed.
- Oxidative stress: pollution, smoking and an unbalanced diet increase the release of free radicals, disrupting the regulation of melanin and encouraging diffuse spots.
2. The influence of the skin microbiome
Recent studies show that the balance of the skin microbiome plays a key role in pigmentation. A bacterial imbalance can encourage chronic hyperpigmentation by disrupting cell regeneration processes and exacerbating inflammation.
Why do pigmentation spots come back despite treatment?
1. Sun protection that is often insufficient
SPF 50+ is essential, but it does not fully protect against the activation of melanocytes.
- UVA rays penetrate deep into the skin, activating melanin production without causing visible sunburn.
- Blue light and pollution stimulate the production of free radicals, worsening pigmentary imbalances.
- Application must be thorough and repeated, even in winter or indoors.
2. Treating only the surface: a common mistake
Many exfoliating or depigmenting treatments focus on removing pigmented cells, but without acting on the overproduction of melanin at the source.
A more effective approach is built on three pillars:
- Modulating melanocyte activity with actives such as tranexamic acid or niacinamide.
- Stimulating cell renewal to gradually eliminate accumulated pigment.
- Strengthening the skin barrier to avoid inflammation and the rebound effect.
3. The rebound effect: why do some spots come back darker?
After an unsuitable peel or laser treatment, poorly controlled inflammation can restart melanin production and darken the spot further.
- Treatments must be gradual and adapted to the skin phototype.
- LaseMD and microneedling allow regulating serums to be delivered deep into the skin without aggressing it.
Advanced strategies for treating pigmentation spots
1. A smarter anti-spot routine
- Tranexamic acid: acts on inflammation and reduces melanin production at the source.
- Niacinamide and arbutin: regulate signal transmission to the melanocytes.
- Retinol and glycolic acid: accelerate cell renewal for a more even skin tone.
2. Medical treatments for persistent spots
LaseMD: a revolution in the treatment of melasma and stubborn spots
- This gentle fractional laser creates micro-channels in the skin, allowing the penetration of ultra-targeted serums such as tranexamic acid.
- Unlike ablative lasers, it does not create excessive inflammation, thereby avoiding the rebound effect.
Microneedling + depigmenting serums
- Stimulates skin repair and improves the distribution of melanin.
- Provides an evening and anti-inflammatory action on skin prone to hyperpigmentation.
New-generation depigmenting peels
- Contain melanin inhibitors to correct in depth and prevent recurrence.
- Are suitable for dark and sensitive skin, which often reacts poorly to conventional treatments.
Preventing recurrence: the key to an even complexion in the long term
1. Reinforced sun protection
- Combine SPF 50+, blue-light filters and antioxidants for complete defence.
- Reapply every two hours outdoors and protect the neck, décolletage and hands.
2. Maintain a corrective routine
- Apply a depigmenting serum even after the spots have disappeared.
- Incorporate a long-term melanin-regulating treatment to prevent melanocyte hyperactivity.
3. Adapt your skincare to the seasons
- In winter: intensive treatments such as peels and retinol.
- In summer: strengthen the skin barrier with soothing and antioxidant skincare to prevent recurrence.
Conclusion: treat spots by targeting the cause, not just the symptom
Pigmentation spots are not solely a consequence of sun exposure. A smart, comprehensive approach must take into account inflammation, the microbiome and the cellular memory of melanocytes.
- Prevention relies on rigorous sun protection and antioxidant skincare.
- Treatments must go beyond exfoliation, modulating pigmentation and strengthening the skin.
- Medical solutions such as LaseMD, microneedling and new-generation peels enable lasting correction without excessive aggression.
At Innerskin, we offer advanced, tailored care, combining cosmeceuticals and innovative medical techniques to treat hyperpigmentation in depth and ensure a radiant, even complexion in the long term.
Would you like a precise diagnosis and care adapted to your skin? Book an appointment for a specialist consultation and discover the most effective anti-spot strategy for you.
