Tranexamic Acid and Hydroquinone Treatment for Melasma and Hyperpigmentation | Effects, Usage, and Side Effects Explained by a Doctor | Jujo Haru Clinic
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"Every time I look in the mirror, I'm bothered by the spots on my cheeks." "I was told I have melasma, but I don't know how to treat it." — A combination of hydroquinone and retinoid (tretinoin) is effective for treating spots and melasma.
Unlike typical age spots, melasma is a unique type of hyperpigmentation that is influenced not only by UV radiation but also by female hormones and friction. Over-the-counter whitening cosmetics are often insufficient, making medical-grade high-concentration formulations an effective treatment option.
In this article, a doctor explains the effects, correct usage, and side effects of hydroquinone and retinoid, as well as important considerations for melasma treatment.
👉 Same-day walk-ins are welcome. Please feel free to consult us.
What is Hydroquinone?
Hydroquinone is a powerful topical skin-lightening agent, also known as "skin bleach," which improves spots, melasma, and hyperpigmentation by inhibiting the tyrosinase enzyme that produces melanin.
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Mechanism of Action |
Inhibits melanin-producing enzyme (tyrosinase). Suppresses melanocyte (pigment cell) activity. |
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Time to See Results |
Many users start to see improvement after 1-3 months of continuous use. |
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Difference from OTC products |
OTC products are 2% or less. Medical-grade products are 4-5%. Higher concentration means stronger effect. |
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Types of Spots Treated |
Age spots (common spots), melasma, post-inflammatory hyperpigmentation (acne scars, etc.) |
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Cost |
Self-pay (not covered by insurance). Please confirm our fees during your consultation. |
What is Retinoic Acid (Tretinoin)?
Retinoic acid (tretinoin) is a vitamin A derivative that promotes skin cell turnover and accelerates the expulsion of spots. It produces synergistic effects when used in combination with hydroquinone.
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Mechanism of Action |
Promotes epidermal cell division and differentiation, accelerating cell turnover. Promotes the expulsion of melanin pigment. |
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Main Effects (Alone) |
Improvement of spots, fine wrinkles, pores, and skin firmness. |
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Synergistic Effect with Hydroquinone |
Hydroquinone suppresses melanin production, and retinoic acid promotes melanin expulsion. The combination achieves maximum effect. |
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Side Effects |
Irritation, dryness, redness, and desquamation (peeling) are common during the first few weeks. These are normal reactions known as "retinoid reactions." |
Correct Usage
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Use at night only |
Both agents are generally used at night. They are easily degraded by UV light. |
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Apply Tretinoin first |
Apply a thin layer of tretinoin, then after 5-10 minutes, apply hydroquinone over it. |
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Use a small amount |
About the size of a grain of rice. Applying too much can cause strong irritation. |
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Follow with moisturizer |
If irritation is strong, apply a moisturizing cream over it. |
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Sunscreen is essential |
Skin with accelerated cell turnover is sensitive to UV rays. Don't forget sunscreen the next day. |
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Caution for Melasma |
Excessive use of tretinoin for melasma can worsen it. Use under the guidance of a doctor. |
Effects of Tranexamic Acid - The Most Effective Oral Medication for Melasma
Tranexamic acid, originally used as a hemostatic agent, was discovered to have an effect on inhibiting melanin production and is now widely used as an oral medication for treating melasma.
Especially for "melasma," it achieves the most effective results when combined with topical hydroquinone.
| Mechanism of action | Inhibits plasmin activity which promotes melanin production. Suppresses overactivity of melanocytes. |
| Time to see results | Many people start to see improvement 1-2 months after starting oral administration. |
| Main indications | Melasma (most effective), post-inflammatory hyperpigmentation, overall dullness improvement |
| Side effects | Rare gastrointestinal symptoms with oral administration. Less irritation with topical (cosmetic) use. |
| Cost | Not covered by insurance. Please confirm details during consultation. |
Frequently Asked Questions (FAQ)
Q. What is the difference between over-the-counter and hospital-prescribed hydroquinone?
The concentration differs. Over-the-counter products are 2% or less, but medical-grade prescriptions can be 4-5% high concentration. While higher concentrations tend to be more effective, they also cause stronger irritation, so use under a doctor's supervision is safer.
Q. Can spots be treated without laser?
It depends on the type. Age spots (common spots), post-inflammatory hyperpigmentation, and melasma can be expected to improve with hydroquinone + tretinoin. For conditions like ADM and certain types of spots that require Q-switched laser, laser treatment is effective. We recommend first identifying the type of spot through a diagnosis.
Q. I've developed redness and peeling, should I continue using it?
Redness, dryness, and peeling can occur as a retinoid reaction during the first few weeks. Skin usually acclimates in 2-4 weeks. If symptoms are severe, reduce frequency to every other day and increase moisturizing. If symptoms do not improve, please consult us.
Flow of Consultation
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Online appointment, or walk-in directly
If you have severe pain or fever, please call us. We will guide you through the consultation process. -
Reception and filling out the medical questionnaire
Please indicate the location and onset of your spots/melasma, and any skincare or topical medications you have used previously.
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Medical examination by a doctor
We will determine the extent and severity through visual inspection and palpation. -
Treatment and prescription
We will prescribe hydroquinone topical cream, tretinoin, tranexamic acid, vitamin C oral medication, etc., depending on your symptoms.
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Guidance on home care
We will carefully explain precautions for daily life. -
Payment and departure
We will advise you on the timing of your next visit and prevention of recurrence.
Clinic Hours & Access
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| Clinic Name | Jujo Station Haru Internal Medicine and Dermatology Clinic |
| Consultation Hours | Monday to Sunday, open daily from 9 AM. Wednesdays until 8 PM, Fridays and Saturdays until 9 PM, and Sundays until 7 PM. |
| Closed | None (Irregular holidays) |
| Location | J&MALL 1F, 2-27-1 Kami-Jujo, Kita-ku, Tokyo 114-0034 |
| By Train/On Foot | Approx. 1-2 minutes walk from Jujo Station on the JR Saikyo Line, J&MALL 1st floor |
| By Bus | Directly in front of the "Jujo Station" bus stop for Kokusai Kogyo Bus |
| By Car | Please use nearby coin parking lots |
| Contact | TEL: 03-6698-2509 ／ Official LINE:https://lin.ee/AL0fp3z |
