Dark marks that remain after acne are often called post-inflammatory hyperpigmentation (PIH). They are not the same as active acne scars, and the right approach depends on skin type, the cause of the marks and whether acne is still active.
What causes acne marks?
Inflammation from acne can stimulate pigment production. Marks may appear brown, grey or red and can take time to fade. Picking or squeezing spots and ongoing inflammation can make the problem worse.
Does glutathione help PIH?
Glutathione has been studied for pigmentation in small clinical trials, but there is not enough evidence to recommend oral glutathione as a treatment for acne-related PIH. Results from general skin-pigmentation studies cannot automatically be applied to acne marks or to a specific commercial product.
What should you consider instead?
Control active acne and protect skin from UV exposure. A dermatologist may discuss topical treatments or procedures depending on the type and depth of pigmentation. Some active ingredients can irritate skin or worsen pigmentation if used incorrectly, particularly in darker skin tones, so avoid aggressive self-treatment.
Practical habits
- Avoid picking or squeezing acne lesions.
- Use a gentle cleanser and suitable moisturiser.
- Use broad-spectrum sunscreen consistently.
- Seek professional advice if acne is painful, scarring or persistent.
Frequently asked questions
Can glutathione remove acne marks?
It is not an established standalone treatment for PIH. Evidence is limited.
Does vitamin C or another ingredient work better?
Different topical ingredients have different evidence and suitability. A dermatologist can recommend an approach based on your skin and acne history.
How long do acne marks take to fade?
It varies. Persistent, worsening or unusual pigmentation should be assessed by a dermatologist.
Educational content only; not a substitute for dermatological diagnosis or treatment.
