Post-Acne Marks (PIH): How to Fade Dark Spots After Breakouts

In the world of skincare, an ingredient with a tricky name has been popping up more and more lately: tranexamic acid. It's praised for its effect against stubborn dark spots and melasma — discolourations that many other products can do little about. But what exactly is it, and is it right for you?

In this article we'll explain what tranexamic acid is, how it works, which skin concerns it suits, and how to add it to your routine.

What is tranexamic acid?

Tranexamic acid is originally a medical ingredient, but in recent years it has been discovered as one of the most effective ingredients against dark spots in skincare. It stands out because it specifically targets the process that causes discolouration.

How does it work against dark spots?

To understand why tranexamic acid works, it helps to know how dark spots form. When the skin is triggered — by UV radiation, inflammation or hormones — the pigment cells (melanocytes) go into overdrive and produce too much melanin. This collects in dark spots.

Tranexamic acid inhibits this excess melanin production. Instead of only fading existing spots, it addresses the source: it prevents new pigment from being produced in excess. This makes it particularly effective on stubborn and recurring discolouration.

Which skin concerns does it suit?

Tranexamic acid excels at discolourations that are hard to treat with other ingredients:

• Melasma: larger, often hormonally driven patches, for example during or after pregnancy. Melasma is notoriously stubborn, and tranexamic acid is one of the few ingredients that make a difference.
• Stubborn dark spots: discolourations that return or don't respond to other products.
• Uneven skin tone: overall dull or patchy discolouration.

A big advantage: tranexamic acid is generally mild and well tolerated, even by sensitive skin — unlike some stronger brightening ingredients.

How do you use tranexamic acid?

Tranexamic acid works best in combination with other ingredients. It pairs especially well with niacinamide, which inhibits the transfer of pigment to the skin — together they tackle discolouration from two angles. Combining it with retinol also enhances the effect, because retinol speeds up cell turnover.

As with all ingredients that target dark spots: sun protection during the day is indispensable. Without SPF, UV radiation keeps causing new discolouration, undoing the effect of tranexamic acid.

Which serum contains tranexamic acid?

The Dr. Reju-All Advanced Retino-Mela Serum combines tranexamic acid with niacinamide and retinol — exactly the combination that tackles dark spots from multiple angles. This way you benefit from the inhibiting action of tranexamic acid, the calming action of niacinamide and the renewing action of retinol in one product.

• Key ingredients: Retinol, Niacinamide, Tranexamic Acid.
• Who it's for: ideal for normal and mature skin. Patch test first if your skin is sensitive.
• How to use: in the evening, after cleansing. Always follow with SPF during the day.

See the Dr. Reju-All Advanced Retino-Mela Serum in our shop

Frequently asked questions about tranexamic acid

Is tranexamic acid safe for daily use?
Yes, it's generally mild and suitable for regular use. With sensitive skin, start gently and do a patch test first.

Can I combine it with vitamin C?
Yes, tranexamic acid and vitamin C can complement each other in tackling discolouration. Do introduce new ingredients one at a time to monitor how your skin reacts.

Does it work on melasma?
Tranexamic acid is one of the most researched ingredients for melasma and can help reduce discolouration. Melasma is stubborn, so patience and sun protection are crucial.

How quickly will I see results?
As with other pigment ingredients, it usually takes 8 to 12 weeks of consistent use before visible fading occurs.

Summary

Tranexamic acid is one of the most promising ingredients against stubborn dark spots and melasma, because it inhibits excess melanin production at the source. It's mild, combines well with niacinamide and retinol, and daily sun protection is indispensable alongside it. If you want tranexamic acid in a complete formula, the Dr. Reju-All Advanced Retino-Mela Serum offers a convenient solution.

Want to see how tranexamic acid works alongside the other key actives? Read our guide: How to Fade Dark Spots: Which Ingredients Actually Work?

This article is for general information and does not replace advice from a dermatologist. For stubborn discolouration or melasma, consult a professional.