Using 2 Types Of Skin Care Ingredients Together?
I want to ask, I use a toner that contains niacinamide and serum that contains citric acid. When I browse it turns out that the two ingredients should not be used together, is that true? And when I use serum, why is my face oily and dull? Thank you
Good evening, thanks for asking at HealthReplies.com. We understand your confusion. Indeed, many articles mention that we should not use niacinamide and citric acid or vitamin C at the same time. The basic reason is because the combination of the two ingredients is considered to be able to react and irritate the skin, and they both can negate the benefits of each other. But in reality, this is not true.
One study that is thought to be the basis of this thinking was published more than 40 years ago. Which means, there have been many more recent studies which can provide more valid information. Among the latest information is that while it is true that both ingredients can make a reaction, other factors such as long time and high temperatures are also needed, while this is not possible if only used as a facial treatment. Our face temperature is low and it's not as long as the product sticks to your face. For some people whose faces are sensitive or have certain skin diseases, it may cause redness and inflammation, but this is temporary and non-irritating. While regarding the effect of eliminating it, in a nutshell, this has been proven to be untrue and also supported by the opinions of various experts.
In essence, it doesn't matter if you use both ingredients together, both from two different facial care products or from one product containing both ingredients. As for your face which is actually oily and dull, it could be because you do not fit into the product in general, or because of other problems such as frequent exposure to pollution, lack of vitamin E, lack of drinking water, and frequent exposure to sunlight. Consult further with a dermatologist or beauty clinic to determine the best treatment for you. So, hopefully answering your question.