I will begin with what I will tell as I, in general, got acquainted with this means.
Some time ago I in hands had a box from BeautyConceptPro with three pretty interesting products: Collagen, Keratin and Elastin.

Now will be a little fact-finding information, and then we will understand why collagen is necessary and as it works at hair.
At acquaintance, at first we see a cardboard box of violet color. All series of means looks identically, the distinction is only the drawing, well and respectively, an inscription on a box)


The structure is quite short and simple too. Only 2 components - collagen and water.
Expiration date - year. During this time it can quite be let to needs of skin or hair)
My set was rather fresh therefore time for use is quite enough!
In general, collagen is used mainly for the person. But I could "make friends" it only with hair preparations.

On the box only one of easy ways of application of this means - namely - addition of a product is written to your "daily" cream. The main thing, before it is attentive to study structure. Collagen is not combined with some components.
At once I will tell that I disregarded this method of application.
Here it is painted about useful properties of collagen for skin.

- fight against extensions
- protection of skin
- elimination of wrinkles
- increase in a tone
- decrease in irritation
And only slightly below, so to say, in the corner it is told that means is applied not only to skin, but also to hair and nails.

But it is a little wait a moment, at first we will study still a theoretical part.
Means is manufactured in Russia that too pleases much.
Here it is possible to see all contacts:

In the box there is a leaf - an insert, having shown you which I and will have nothing to add, everything is very in detail painted about means. But nevertheless I will show it to you in spite of the fact that it takes away from me work))
The first part:


Well it is also a high time to glance in a box. There you will be able to find here such inconspicuous plastic bottle packed into a plastic bag.

Well frankly speaking, I already cannot wait to show you collagen "in business" because it performs the work perfectly!
Therefore I start the story rather.
I found only two methods of application, successful for myself! Though I more also did not look for because the received result quite suits me.
At home I found two products with which I managed "to make friends" collagen.
Way No. 1.
To use as a mask after washing of hair.For this purpose I suited Here such hair balm which I did not know how to use.

Collagen is a transparent viscous liquid which has practically no smell.
On the following photo you will be able to see it. Lies the top layer.

The measured glass was useful to me only for mixing of two products, but in any way not for measurement because measurements it not for me)
Generally, on the discretion, cast N-noye amount of balm, and besides from above "approximately" poured collagen, without having forgotten it before it it is good to stir up.
Then all this should be mixed carefully. And further it is applied on clean moist hair after washing and it is left, at least for 10 minutes.
I have a hold time, on average, 10-20 minutes.
I will remind that I do such mask every week on Wednesdays for about two months.
Therefore impressions, as well as collagen in my hair, much as you understand managed to accumulate)
Also, noted that hair ceased to break off on the ends that allowed me to put growth of hair in motion!
Well and hair after such mask:


Way No. 2.
For strengthening of effect and for bigger advantage to the hair, I "enriched" with collagen hydrolat.
Also poured collagen "approximately".
Used it after each washing, as a humidifier of hair.
What did I note right after the first application?
First, hair dried longer. Even on laying by the hair dryer a lot of time left.
And you remember what it speaks? If is not present, then I will remind)
Hair quickly dry, due to the porosity. How many myself I remember at me hair always quickly dried, at the same time, on closer examination it was visible that the structure of each hair is non-uniform.
Secondly, using such "enriched" hydrolat daily I began to notice that hair as if became more dense. What says that Collagen and the truth works, in fact it is protein which fills emptiness of a hair.
I do not know why, but before use of collagen I made a photo of tips of hair. Frankly speaking, did not believe in any result, but comparing a photo "to" and "later" only a week later, nevertheless noted that the condition of hair became much better.
And you what you will tell?

Also I hope, missed nothing in the story)