Maybe not whitening and anti-aging,
Bad for your face!
"Early C and Late A" has been popular in the constitutional party circle since last year, and its popularity has not diminished. During the Double Eleven period, more people came out of the platform, saying that it was a "golden formula" for anti-aging, and many products were sold. Do you feel itchy and a little itching now? !
Many partners around us have tried the formula of "early C and late A", but the feedback results are obviously polarized. Some people really get better after using their skin, and some people get worse when they are not careful. ......
Seeing that the Double Twelve is coming again, let's have a good talk with the fairies today. Is it skin care metaphysics or universal formula? What skin type is suitable for and how to operate it?
What is early C and late A?
This ritual skin care theory originated from the circle of "component party".
However, it is not a feudal superstition, but a "scientific skin care method" with sufficient scientific basis: through the combination of morning and evening, the antioxidant and whitening effects of vitamin C and the anti-aging and repairing effects of vitamin A are fully exerted.
Students who don't know what "early C and late A" are, let's take a look at the noun explanation first:
C stands for vitamin c and a stands for vitamin a.
"Early C and late A" refers to the use of skin care products containing prototype vitamin C to resist free radicals during the day; Repair light damage with products containing vitamin A at night.
Why is "C early and A late"? Mainly because of the different characteristics of these two components and the day and night theory of skin.
Efficacy and use of vitamin c
Vitamin C has always been a favorite of whitening people, with excellent efficacy, and has always been respected by everyone.
Arranging to use vitamin C in the morning can act as a security guard for the skin all day, "drive away" free radicals that harm the skin, inhibit the formation of melanin and protect the skin.
During the day, the ultraviolet rays in the sun are very abundant, which will accelerate the generation of free radical madness. Therefore, compared with the night, anti-oxidation is more needed during the day.
There are many skin care products containing vitamin C in the market, generally starting from 5%, and 10- 15% can make a big difference. Of course, there are also heavy devices with a content as high as 20%:
Low concentration group: 10% vitamin C.
Left: Clinique fresh VC essence repair solution
Right: L 'Oré al Paris Renaissance
Triple power deep revitalizing cream
Medium concentration group: 15% vitamin C.
Left: Sherrico CE composite repair essence
English: drunk as L- vitamin C daytime firming essence.
Right: Lanc? Me whitening spot essence
High concentration group: 20% vitamin C.
Left: Petrov's powerful anti-oxygen laser brightens essence.
English: Tatcha Purple Charm Diamond Brightening Essence
Right: Daimu Japanese version of vitamin C serum 20
However, we should also pay attention to the use of vitamin C products. It is not recommended to use products with too high concentration (> 15%), which may easily cause irritation to the skin and make your face rotten if you are not careful.
Many people have misunderstood vitamin C before, thinking that vitamin C can't see the sun, and all skin care products containing vitamin C are "dying at the sight of light". In fact, vitamin C itself has no photosensitivity, but it will turn yellow, and this yellow can be washed off.
When using vitamin C, you should apply sunscreen products to resist ultraviolet rays and extend the effective time of vitamin C.
In addition, there is a saying that "applying lemon is easy to get sunburned and tanned, because vitamin C can cause skin photosensitivity". In fact, the culprit is not vitamin C, but furan coumarin in lemon, which can cause skin photosensitivity.
Efficacy and use of vitamin A
Vitamin A is a famous "universal oil" in the skin care industry, which can not only dilute fine lines, but also remove acne and inhibit melanin.
There are many family members: an ester, an alcohol, an aldehyde and an acid are all vitamin A families. But the core component that really has a prominent effect on the skin is acid A (ester A, alcohol A and aldehyde A are finally converted into acid A to play a role).
However, acid itself is very irritating, so it is usually used in ointment and used according to the doctor's advice. VA skin care products on the market are all derivatives of A acid, and the closer to A acid, the better the effect. Retinol of fire in these two years belongs to A- alcohol.
It should be noted that the steps of converting alcohol A into acid A are relatively few, so the speed is faster, but alcohol A is unstable and irritating; The conversion of ester into acid has many links and is slow, but ester is more stable and mild.
In general, the concentration of skin care products containing vitamin A flavonoids in the market is relatively low, and 1% is Haoheng type (only American companies dare to use it at present), which is generally 0. X% (the maximum limit stipulated by European regulations is only 0.3%), and even 0.0X%. However, this low-concentration product is still not suitable for people who are sensitive to vitamin A. I suggest you try it at a low concentration.
Low concentration group: 0. 1%-0.3% retinol.
Left: Avni RetrinAL Cream 0. 1%
English: L 'Oré al Paris Rejuvenation Night Cream 0.3%
Right: Elizabeth Arden
Gold Navigation Night Anti-wrinkle Capsule 0.3%
Medium concentration group: 0.3%-0.5% retinol.
Left: potherb mustard retinol essence night cream 0.5%
Medium: PCA skin retinol night cream 0.5%
Right: Obagi A Alcohol Essence Milk 0.5%
Low concentration group: 1% and above retinol.
Left: Retinol essence 1% during the concentration of Borazine.
English: Drunk elephant retinol loves anti-aging essence 1%
Right: Ordinary
2% Retinal in Squalane
Although vitamin A is an anti-aging expert, it also has its own "small temper":
Vitamin A is phototoxic, that is, it is easily decomposed by ultraviolet rays, ineffective, irritating the skin, and may even cause sunburn and dermatitis. The risk of skin cancer is greater than that of ordinary people.
Therefore, no matter how good vitamin A is, it can't be used during the day, and during the use, you must do a good job of sun protection during the day.
At night, it can activate various targets of anti-aging and rejuvenation, and realize the repair of trace of micro-aging.
What should I pay attention to in the pre-C and post-A periods?
Theoretically speaking, early C and late A are a kind of ritual, but many people can't tolerate them, because both of them belong to the category of "strong medicine" (good effect and strong irritation), especially after the prototype VC, the use of VA will aggravate the irritation to the skin and cause some skin intolerance. So this is why some people will not tolerate it even if they use it separately in the morning and evening.
Sensitive muscles should be used with caution.
If you are a sensitive muscle with damaged skin barrier, or have just finished a medical beauty project, don't blindly pursue "early C and late A" in skin care, especially the high concentration of ingredients will cause irritation to the skin and make the skin damage more serious.
Pregnant women should use it with caution.
Not only that, although vitamin A has a strong skin care effect, acid A has a teratogenic effect on babies, so pregnant women, pregnant women and breast-feeding women are not suitable for "early C and late A".
Pay attention to skin tolerance
Even healthy skin has the problem of being easily stimulated. Therefore, if you encounter skin tingling, fever and other problems when using it for the first time, it means that you need to train your skin tolerance little by little, so be careful.
The use of grade A products usually follows the so-called FSOC method. If skin discomfort occurs during this period, stop using it in time!
F= frequency: gradually increase the frequency from once a week or once every two or three days, and the highest frequency is once a night.
SCT= Short-term contact: stay on the face for a short time (a few minutes), then suck it off, and slowly extend the time to one or two hours until it can be used as a skin care product.
O= sequence: at first, water emulsion can be used as the base cream to weaken the penetration of VA and reduce the stimulation, and then gradually promote the sequence.
C= concentration: start with a low concentration (0. 1%) and increase the concentration after tolerance.
If vitamin A tolerance has been established, you can still stop working intermittently. Because it is very powerful, it can really penetrate into the skin and stay for a while, so its effect can also last. Don't repeat the mistake of "the more you use, the more you get back".
What if early C and late A are not applicable?
Vitamin C and vitamin A are not the only ingredients with whitening and anti-aging effects. If you are unfortunately allergic to these two ingredients, you can also achieve the same effect through other ingredients.
Common whitening ingredients
Phenylethyl resorcinol
It is a large-scale derivative of hydroquinone, the first whitening ingredient approved by CFDA, and the only whitening ingredient registered by Food and Drug Administration in China.
The essence of the hot Japanese city doctor 377 VC contains phenylethyl resorcinol.
arbutin
By inhibiting the activity of tyrosinase, the production of melanin can be prevented, thus achieving the effect of whitening. However, it should be noted that although both are called arbutin, they are also divided into α-arbutin and β-arbutin. As a skin care product, it is ideal to add α-arbutin as the main ingredient, because it is safer and has better whitening effect.
There are also many products containing arbutin, and the common ones are whitening and freckle removing essence containing 2% α- arbutin.
nicotine
Also known as vitamin B3, some people think that this ingredient is irritating because the purity of nicotinamide is not high enough, and the impurity is nicotinic acid which is irritating to the skin. But it can not only whiten the skin, but also remove yellow and resist aging, which is effective and powerful.
Many P&G products contain this ingredient, such as the most common Olay pale white bottle.
tartaric acid
This is also the main component of the so-called "brush acid". Refers to the natural acid extracted from a variety of natural fruits and vegetables, and the whitening effect is mainly to peel off waste keratin. But it is very unfriendly to people with sensitive skin. In addition, pay more attention to sun protection after using acidic products, otherwise it will turn black faster.
Fruit acid products are also very common. Estee Lauder has a fruit acid skin rejuvenation essence.
Common anti-aging components
boson
The patent that L 'Oré al Group is proud of can not only promote the production of collagen, but also promote the tightness of the junction between epidermis and dermis, and even strengthen the skin barrier. Not only in L 'Oreal Group, but also in the list of anti-aging ingredients.
Kiehl's whitening essence, although it is the main whitening effect, also adds a moderate concentration of Bose.
Vitamin e and its derivatives
The most direct function of vitamin E is to significantly improve the barrier protection function of the skin itself, and it is not irritating. It can also strengthen the skin's moisturizing power, reduce the damage of ultraviolet rays, and strengthen the cell's antioxidant capacity. In addition, it is mild and non-irritating, and is widely used in many anti-aging products.
Vitamin E is also very common in skin care products, and there are many vitamin E ingredients, such as Blackmores' vitamin E cream.
Shengtai
Peptides are natural substances composed of various amino acids. Its structure is larger than that of amino acids and smaller than that of protein. The main functions of most peptides are anti-aging and firming skin. As an ingredient, its threshold is very high, so the price of most products containing peptides naturally goes up.
Estee Lauder specializes in firming essence, which contains a synthetic peptide, claiming to have the same wrinkle-removing effect as Botox.
After reading these, you will find that there are actually many ingredients that can help you do what vitamin C and vitamin A do. For example, you can also "early e late acid" or "early bear late peptide" …
About "early C and late A", that's all for today. Do you have this ritual "skin care gold formula"? Counting with your fingers, there are only a few days before the double twelve. I hope you can think clearly first whether the warm-hearted skin care ideas and products are suitable for you. If not, you can replace the products appropriately!
Shop wisely, don't blindly follow the trend. I wish all sisters can find their own skin care programs and products, which are getting better and better ~