Tranexamic Acid Serum: Lightweight Spot-Correcting Formula (DIY Guide)

This emulsified, fast-absorbing serum combines Tranexamic Acid (TA) and Niacinamide, two proven brightening ingredients that work synergistically to reduce dark spots, tanning, and pigmentation. With consistent use, the skin appears more even-toned, hydrated, and radiant.

Why this Serum Works?

Tranexamic Acid + Niacinamide is one of the most effective pairs for correcting hyperpigmentation caused by melasma, sun exposure, acne marks, and pollution.

The formula is suitable for all skin types, including acne-prone skin due to its lightweight, non-greasy oils.

About the Key Ingredients

1. Tranexamic Acid (TA) – 2–5%

Helps fade dark spots, melasma, sun damage
Boosts skin clarity & luminosity
Works well with Niacinamide, Hyaluronic Acid, Vitamin C
Add in water phase
Ideal pH: 5–7

2. Niacinamide – 1–10%

Reduces pigmentation & supports brightening
Strengthens skin barrier
Very water-soluble
Works best above pH 5

3. Propanediol 1,3 – up to 10%

Natural humectant with non-sticky finish
Improves penetration of actives
Helps dissolve ingredients effectively

4. Oil Phase (Light & Acne-safe Oils)

C12–15 Alkyl Benzoate and Emogreen L19 offer fast absorption
Provide a soft, silky texture without heaviness

5. Hyaluronic Acid (HA) – 0.2%

Intense hydration
Makes skin soft, smooth & plump

6. Lotionpro Emulsifier

Self-emulsifying, acid-stable blend
Helps create stable, lightweight serums
Works best with thickeners like cetyl alcohol

7. Cool Down Phase Ingredients

AsesPreserve PHEHG (Phenoxyethanol + Ethylhexylglycerin)

Broad-spectrum preservative
Paraben-free, formaldehyde-free

Witch Hazel Extract

Astringent, soothing, complements TA & Niacinamide
Can be substituted with Green Tea or Cucumber Extract

Fragrance Oils (optional 0.5%)

Enhances sensory feel

Equipment Required

Serum pump bottles
100 ml glass beakers
Stirring rods / spatulas
Heating mantle or double boiler
Accurate weighing scale
Gloves, cap, eye protection
Measuring cups

Full Formulation (Percentages)

Water Phase

Distilled water – 80.3%
Propanediol 1,3 – 5%
Tranexamic Acid – 3%
Niacinamide – 3%

Oil Phase

C12-15 Alkyl Benzoate – 2%
Emogreen L19 – 1%
Lotionpro – 4%
Cetyl alcohol – 2%
Hyaluronic acid – 0.2%

Cool Down Phase

Ases Preserve PHEHG – 1%
Witch Hazel Extract – 0.5%

How to Make the Serum (Step-by-Step)

Step 1: Prepare the Water Phase

Heat water phase ingredients to below 40°C until dissolved.

Step 2: Prepare the Oil Phase

Heat the oil phase to around 60°C until melted.

Step 3: Emulsify

Slowly pour the oil phase into the water phase.
Blend using a stick blender in short bursts.

Step 4: Cool Down & Add Actives

Once at room temperature, add preservative and extracts.

Step 5: pH Adjustment

Adjust to pH 5.5

Step 6: Rest & Package

Allow the serum to stabilize for 24 hours, then fill bottles.

Usage Instructions

Use at night every day
Always apply sunscreen during the day

Disclaimer

This guide is intended for educational and informational purposes only.

FAQs

1. What does Tranexamic Acid serum do?

It helps reduce dark spots, melasma, acne marks, and sun pigmentation by decreasing excess melanin production.

2. Can Tranexamic Acid be used with Niacinamide?

Yes. TA and Niacinamide work synergistically to brighten skin and even out tone.

3. What is the ideal pH for a Tranexamic Acid serum?

Between 5 and 7, depending on stability and skin compatibility.

4. Can this serum be used on acne-prone skin?

Yes. The formula uses lightweight, non-comedogenic emollients like C12-15 Alkyl Benzoate and Emogreen L19.

5. How long does it take to see results?

Most users see improvement in 3–6 weeks with consistent application and sun protection.

Posted on February 23, 2025

Ajay Singhvi

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