Skin Makeover Tip #4: Do a Patch Test with New Products


If you have extremely sensitive and allergic skin, it’s always recommended to do a patch test for compatibility prior to using any new products. When you’re trying a new line you’re excited to dive right in and use everything, but if you have a negative reaction to something you’ll never know what it was.

If you have extremely sensitive and allergic skin, it’s always recommended to do a patch test for compatibility prior to using any new products. When you’re trying a new line you’re excited to dive right in and use everything, but if you have a negative reaction to something you’ll never know what it was. You might make some of your own assumptions, but it’s really hard for you to determine for sure….

How to test for possible allergic reactions: The side of the neck is a good starting point for true compatibility because it’s thinner and generally more reactive. The idea is that if it can be tolerated on your neck, then you can feel confident that it will be okay on the face. Also, should you encounter a negative reaction such as an itchy, red rash, you might want it to appear on the neck rather than on your face.

Note: The product category that allergic skins are most reactive to are products that you would leave on the skin (moisturizer, serum, toner, eye cream) as opposed to a cleanser that you apply and rinse right off. Also, if you are doing a patch test with a product that contains Glycolic Acid, Lactic Acid, Salicylic Acid or other AHA’s, it is normal that the skin may be slightly pink but this should usually subside within 10-15 minutes, especially if moisturizer is applied on the skin over it.

What to do if you have an allergic reaction? If you ever use a product and break out in a rash, you can apply either Milk of Magnesia or cold plain yogurt to the affected area. Leave on 15 minutes, rinse and repeat every three hours.

What’s the #1 ingredient most likely to cause an allergic reaction? Synthetic fragrance which will be listed as “fragrance”, “parfum” or “perfume” on the back of the packaging. At Renée Rouleau, we don’t use any artificial perfumes in any of our products.

How to test for possible blemishes or clogged pores: The cheek (close to the nose) or chin area is a good place to test if you’re prone to breakouts. There are a higher amount of oil glands and pores in these areas so the product can penetrate deep into the pore lining. If a product is going to cause breakouts, it’s most often not going to happen after just one use, so you may want to consider testing a small area for 7-10 days if you really want to be cautious.

If all tests well, you can proceed to using your products on the entire face.

Note: The product category that allergic skins are most likely to have a reaction to are products that you would leave on the skin (moisturizer, serum, toner, eye cream) as opposed to a cleanser that you apply and rinse right off. Also, if you are doing a patch test with a product that contains Glycolic Acid, Lactic Acid, Salicylic Acid or other AHA’s, it is normal that they might leave a little red mark on the neck simply because (depending on the strength) these are not meant for use on the neck.

What to do if you have a reaction? If you ever use a product and break out in a rash, you can apply either Milk of Magnesia or cold plain yogurt to the affected area. Leave on 15 minutes, rinse and repeat every three hours.

What’s the #1 ingredient most likely to cause an allergic reaction? Synthetic fragrance. At Renée Rouleau, we don’t use any artificial fragrances in any of our products. Here’s a list of ingredients that we use and avoid in all of our products.

Skin Makeover Tip #1 Assess Your Skin Care Products
Skin Makeover Tip #2 Find a Reputable Skin Care Professional
Skin Makeover Tip #3 Schedule a Consultation
Skin Makeover Tip #5 Get Started with Caring for Your Skin
Skin Makeover Tip #6 Practice Good Skin Care Habits Daily
Skin Makeover Tip #7 Go Through a Series of Light Chemical Peels
Skin Makeover Tip #8 Get Regular Professional Facials
Skin Makeover Tip #9 Eat a Healthy Diet
Skin Makeover Tip #10 Practice Self-Acceptance
Get products recommended for your skin type by choosing one of our nine skin types.

Questions about your skin? Be sure to email us. We’re here to assist!

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Content found on Blog.ReneeRouleau.com, including: text, images, audio, or other formats were created for informational purposes only. The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this blog.