How to patch test skincare – and why it matters

When it comes to skincare, one truth stands above all: everyone’s skin is different. Even the most gentle, natural formulations may not work for every skin type. That’s why dermatologists and skincare professionals alike recommend one crucial step before adding any new product to your routine – patch testing. Here’s why patch testing is essential, how to do it correctly at home, and how to tell the difference between an allergic reaction and a sensitivity.

No two skin barriers are exactly alike. Factors like genetics, environment, health, hormones and even stress levels affect how your skin reacts to ingredients – even natural ones. So while our formulations at Antipodes are designed to be gentle and effective, it’s impossible to guarantee that every product will suit everybody. Patch testing is a simple way to check for potential irritation or allergies before applying a product to your face.

Patch testing is quick, easy, and can be done at home, or even in-store. Here’s a simple step-by-step guide:

1. Choose your test area

Pick a small, discreet spot where your skin is thin and sensitive. The inner elbow or behind the knee are ideal, as they mimic the delicate nature of facial skin.

2. Apply a small amount of product

Using clean hands or a cotton bud, apply a pea-sized amount of the product to the test area.

3. Leave it on

Allow the product to absorb naturally. Avoid washing the area for at least 24 hours – up to 48 hours if you have very sensitive skin.

4. Monitor the skin

Check the patch area regularly. Look out for redness, itching, bumps, stinging, or dryness.

5. Assess the results

• No reaction? You're likely good to go – but still introduce the product gradually.
• Mild irritation? You might be experiencing sensitivity.
• Strong or immediate reaction? Wash off the product and discontinue use. You may have an allergy to one or more ingredients.

It’s important to distinguish between an allergic reaction and a sensitivity, as they need different approaches.

A sensitivity is your skin’s way of saying, “This isn’t quite right for me.” It might not mean the product is inherently unsuitable – just that your skin barrier may be a little overwhelmed or reactive.

Common signs of sensitivity include:

• Mild redness or flushing
• Stinging or tingling sensations
• Slight itchiness

This type of reaction is usually temporary and can often be managed by reducing how often you use the product, being mindful of what other skincare products you’re combining it with in your routine or simply using a smaller amount. 

Sensitivity can also be a sign of a compromised skin barrier, so be sure to use products that strengthen, not deplete your skin’s barrier.

A true allergy involves the immune system, which sees a particular ingredient as a threat. These reactions tend to be more intense and may appear quickly or after repeated exposure.

Common signs of an allergic reaction include:

• Swelling
• Itchy rash or hives
• Burning or severe irritation
• Skin that becomes hot or painful to the touch

If you suspect an allergic reaction, stop using the product immediately, rinse it off, and avoid reapplying. Seek medical advice if symptoms persist or worsen.

If you’re excited to try a full routine of new skincare, we get it – but your skin needs time to adjust. Introducing too many new products at once can make it hard to pinpoint what’s causing a reaction, should one occur.

Start slowly. Introduce one new product at a time – ideally with several days between each – so you can monitor your skin’s response. Begin with the most essential item, such as a cleanser or moisturiser, and gradually build from there.

This step-by-step approach not only helps you identify any potential triggers but also gives your skin a chance to benefit fully from each product.