How to do a 48h Patch Test Before Colouring

How to do a 48h Patch Test Before Colouring

Before you colour, there’s one essential step you should never skip: the 48-hour patch test. It’s the most effective way to ensure your scalp and skin are not reactive to the colour formula — even if you’ve coloured before.

Here’s how to do it, in just four simple steps:

Step 1 – Measure & Mix

Start by preparing a small amount of product:

Pour 2 ml of the Colour Crème into a clean dish. Reseal the tube tightly.
Do the same with 2 ml of the Developer, making sure to keep the comb tip sealed.
Mix both parts thoroughly until fully blended.
Use the mixture immediately — do not store.

Step 2 – Apply to Skin

Using a clean cotton bud, apply a coin-sized amount of the mixture to a sensitive area of your skin:

Behind your ear (remove earrings first) or
On the inner elbow

Let it dry. Repeat two more times, letting each layer dry fully before reapplying.

Step 3 – Wait the Full 48 Hours

Be patient — this is the most important part.
Avoid washing, covering, or touching the test spot during this time. Let your skin respond naturally.

Step 4 – Read the Results

After 48 hours, check for signs of irritation:

✔️ No redness, itching, or swelling? You’re ready to colour!

❌ Any reaction? Do not use the product. We recommend consulting a professional.

By following this guide, your 48h Patch Test before colouring becomes a simple yet powerful way to protect your scalp and enjoy a smooth colouring experience.

Important Notes

Only 4 ml total is used, so your tubes remain intact for future use.
Once resealed, both Colour Crème and Developer stay fresh for up to 12 months if stored in a cool, dry place.
Always repeat the patch test 48 hours before every new colour session, even if you’ve used the product before — sensitivities can change over time.

Extra Tips for Best Results

Choose the right spot: Behind the ear or inner elbow offers the most accurate results.
Don’t rush: Many allergies take a full two days to show — respect the wait time.
Know the signs: Redness, itchiness, swelling, or rash = potential allergy.
Safe to colour? Go ahead and mix a fresh batch. But if irritation starts during application, rinse immediately.

Post-Colour Care Tip 💧

Colouring can leave your strands needing a little extra love.
Treat your hair to the Aromaganic Colour Revive Hair Mask — it’s your go-to for deep hydration, softness and radiant shine after colour.

How to do a 48h Patch Test Before Colouring