People's common foods contain collagen, such as beef tendon, pig's trotters, pig's skin, chicken skin, fish skin and cartilage. However, the molecular weight of collagen in these foods is very large, usually between hundreds of thousands and hundreds of thousands, which is difficult for the human body to absorb and utilize. Moreover, while supplementing collagen, these foods also consume too much animal fat. If they don't take advantage of human health, they often supplement collagen and gain weight. Therefore, supplementing pure collagen powder in an appropriate amount has become an inevitable choice for many women who love beauty.

At present, 99% of collagen on the market is fish collagen, so all major websites and forums also say that fish collagen is the best. In fact, fish collagen is the worst. The reasons are as follows: First, the safety of fish collagen, containing "purine" is the fatal weakness of fish collagen safety, and long-term use is easy to cause gout and edema. Secondly, the absorption of fish collagen, the hydroxyproline content of fish collagen is only 8.8-9.6%, and that of normal mammals is11.3-12.6%. In addition, the molecular structure of mammals is similar to that of humans, and its absorption is more than 2-3 times that of fish collagen. But why are most of the fish collagen on the market? Because the cost of fish collagen is low, which is only one third of that of cowhide collagen and pigskin collagen, merchants mainly focus on fish collagen.

First, how to use collagen for the best effect?

1, oral: take 0.5g~2.6g before going to bed every night (flat 1 spoon is about 0.5g), and before going to bed at night (around 10 o'clock), the skin is at the peak of metabolism. Taking it at this time can repair the skin very well. If you have fruit juice, milk or VC tablets, you can take one orally at the same time, which can enhance absorption, whiten and moisturize. It is best to take 2g~3g daily for quick repair, and 5- 10g daily for the elderly. Please note that the interval between taking time and eating time is at least 2 to 4 hours.

2, external use: external use can be used on facial mask or eye mask, according to the ratio of 1g: 100g, add SUM collagen essence powder (take out a facial mask or eye mask while using it, and apply SUM collagen essence powder on face or eyes, then it will have the effect of active collagen essence powder! )

3.DIY: you can make active collagen skin care products by DIY: after adding this product, it has no effect on the shelf life of cosmetics; Collagen, as a kind of protein, has its own nutritional function, so we should pay attention to it when adjusting the formula. Because collagen itself has good moisturizing and lubricity, it can reduce the amount of oil and reduce the greasy feeling of cosmetics. Experts suggest that the best time to maintain collagen is physical therapy after exfoliation, when the skin is at its thinnest stage.

Second, the use of collagen should pay attention to matters:

1, avoid high temperature, about 40 degrees can be imported;

2, it is best not to drink with carbonated drinks;

3, taking Vc tablets can be better absorbed;

4. It is best to use it at 9- 10 before going to bed at night;

5, DIY collagen skin care products, be careful not to use with alcohol-containing skin care products, because alcohol will destroy the activity of collagen;

6. Maintain good eating and rest habits;

Experts remind: oral collagen should be taken for at least one month, because the skin cavity formed by long-term loss is difficult to make up if there is no certain time. Experts pointed out that because the collagen synthesized by human body is only 1/4 of the lost collagen, oral collagen skin care must be as long-lasting as calcium supplementation.