Have you ever encountered this situation: moisturizing, whitening, firming and anti-wrinkle, brushing acid... All kinds of high-efficiency skin care products have been on the face, but they seem to be useless. What’s even more uncomfortable is that the skin care products you boug

Have you ever encountered this situation: moisturizing, whitening, firming and anti-wrinkle, brushing acid... All kinds of high-efficiency skin care products have been on the face, but they seem to be useless. What’s even more uncomfortable is that the skin care products you bought at a high price not only fail to work, but also inexplicably red, irritating, and rotting your face? Don’t worry about giving you a bad review of your skin care products. It may be because: you made a wrong CP for your skin care products! Dad evaluation researcher summarized 5 "bad face skin care CP" that cannot be mixed. Let's see if you used it wrongly -

01 Acids + 377 = induced white spots

There are more and more friends who are keen on brushing acid and whitening, but be careful that acids and skin care products containing resorcinols (such as 377, glucocytardithenium, resveratrol ) cannot be mixed, and it is easy to produce a substance called "hydroquinone".

We have listed some common acids and resorcinol skin care products. You can use it as a reference -

02 Acid + A alcohol = tingling and redness

In addition, acids and A alcohol products should not be mixed, because both ingredients need to be tolerated, the skin will be unbearable, and it is easy to tingle and redness. For example,

03 Acid + urea = Not moisturizing

urea is a high moisturizing ingredient. If combined with acids (except azelaic acid ), it will reduce the moisturizing effect. Don't want to spend money in vain, remember to match it carefully.

04 Alcohol + Protein = "Failed"

Alcohol-containing skin care products are not recommended to use with skin care products containing proteins (such as collagen , peptides), because alcohol will denature protein and lose biological activity. In layman's terms, it's the protein skin care products you spend money to buy, which may be useless. Let’s see what are the common ones -

05 Blue copper peptide : Beautiful alone?

blue copper peptide is said to be able to repair and tighten the light texture, but its compatibility can be said to be "one mountain cannot withstand two tigers"!

Note: Researchers added EDTA mixed with blue copper peptide for experiments. When blue copper peptide encounters alcohol, VC, 377, antioxidants, peracids (A alcohol, fruit acid, salicylic acid , etc.), overbase, chelating metal ions ingredients such as EDTA, preservatives (octanyl hydroxamic acid), carnosine , these will make it ineffective. It has many taboos, and researchers also recommend that it be beautiful alone -

Be careful, VC is photosensitive, and it is necessary to strictly protect the sun during day use. In addition, VC has relatively strong reduction and instability, so it should be kept away from light. To prevent oxidation, it must be used up as soon as possible after opening. In addition, the skin care products listed in the card cannot cover all the products you use as an example of ingredients that are not suitable for mixing. We still need to learn from one example and pay attention to the combination.