When a friend took a screenshot and asked me, "Is Xinjiang Raw Eyebrow Grass Useful?", my whole heart was:
Xinjiang raw eyebrow grass? What species? What is the so-called "all-natural eyebrow ingredient"? And even the hairline can be saved? Is it really useful? Maybe we can take a peek.
Image source: Taobao
After a simple search, I found that the so-called "raw eyebrow grass" is not mysterious. As early as a dozen years ago, when it was called "Usma", some people exaggerated it (whether it was exaggerated or not was a matter of opinion):
The most striking feature of the Uyghur women in Xinjiang is the pair of eyes, and what makes the eyes shine is the thick black eyebrows that bend like a crescent. The Uyghur women's eyebrows are so beautiful, mainly due to a grass called "Uxma", which the Uighurs call "the grain of the eyebrows". This scientific name is "European pineapple blue", commonly known as pastel, the leaves are dark green, collect its leaves, and repeatedly smear the eyebrows with the squeezed juice, over time, the eyebrows will become black and shiny like crops that have sucked up enough nutrients. The Uyghurs have been painting the Uze mantis grass for thousands of years, and it is said that the hair is washed with the Uzi mango grass, and the hair is also dark and shiny.
Modern medicine proves that usmar herb contains pineapple, mustard and other ingredients, usma herb unique plant nutrient combination goes deep into the inner layer of the eyebrow skin, continuously releases rich nutrients, significantly improves the activity of SOD in hair follicles, promotes eyebrow growth, and long-term application can help eyebrow and hair growth.
Usma is extremely picky about the living environment, only the landform and climate of Xinjiang in the world meet the growth conditions of Usan grass, if it is transplanted elsewhere, it is easy to mutate, and the eyebrow effect will weaken or even disappear. Even in Xinjiang, once the environment changes, usma grass will also be mutated.
Source: An agricultural information website
This introduction is half-true and half-false. Let's start with the real part: Usma is not a name made up. It is also written in the introduction that it is the isatis indigotica of the cruciferous family, and it is also called Daqing and Indigo. Pineapple has been incorporated under the European pineapple (Isatis tinctoria) as a variant (Isatis tinctoria var. indigotica), but all in all, all in all, the same species.
Pineapple grown in the first year 丨 Wikipedia
So don't look at the Uxma plantations and wonder if they're fooling you with their own vegetable patches. At least in terms of bloodline, it is indeed closely related to mustard and cabbage, and belongs to the same cruciferous family.
Pineapple is not only close to mustard greens, but also to our lives. After the root of pineapple is washed and dried, it is the raw material of the plate blue root punch, and the so-called "plate blue root" refers to the root of the pine blue. Xinjiang raw eyebrow grass uses pine blue leaves. Doesn't this just prove that Xinjiang is an inseparable part of the land of China?
The stems and leaves of pineapple are mashed or juiced and can be used to make indigo dye. In ancient times, the blue dye commonly used to dye clothes was pineapple blue, and there is also a saying that the word "blue" originally referred to pine blue.
Blue printed zigzag baguette, Zhejiang Museum collection 丨3 hunts, Wikipedia
Because pineapple is easy to feed, the yield is also high, and the dyeing is convenient, even ordinary people can afford it. From this point of view, it is unlikely that there is a situation where the living environment is picky and only Xinjiang is suitable for cultivation in the world.
Speaking of which, we seem to have only confirmed that pineapple is a high-quality natural dye, and have not mentioned the role of pineapple "eyebrow".
Because...... Not really. In a 2020 review of the botany and biochemistry of the pineapple people[1], it is still not mentioned that pineapple has the effect of promoting hair growth.
However, the merchants who sell raw eyebrow grass and uxima have some other ingredient ideas: vitamin C, SOD (superoxide dismutase), asterisin and so on. Therefore, we only need to analyze one by one to see whether these ingredients have hair growth function.
Image source: 1688
So, do these ingredients have such a powerful effect? Do you have a number in mind that you often look at the popular science ingredients of the living sister? (If not, just when I didn't say)
As one of the most familiar ingredients, vitamin C has whitening, antioxidant, and skin metabolism, but it is absolutely not possible to promote hair growth. If nothing else, if VC can promote hair growth, how can there be baldness in the world?
The full name of SOD is superoxide dismutase (superoxide dismutase), the effect is also antioxidant, scavenging free radicals, preventing and delaying skin aging and so on. In the same way, if SOD can promote hair growth, then Dabao and Overlord should be able to beat their heads and bleed.
These two ingredients, if there is really anything related to the effect of eyebrows, it is "repairing hair follicles" and "activating hair follicles". But between all-natural biological products and cosmetics made in modern industry, the formal latter is both safe and effective.
What about pineapple? Nor is it very reliable. As a precursor to the natural indigo process, singioside (Isatan B) has not yet been developed for other benefits. [2]
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How did the "eyebrow" effect of raw eyebrow grass come about? If pineapple does not contain ingredients that promote hair growth, why do so many people say that eyebrow grass and uxima oil are useful?
In fact...... Friend, have you ever heard of eyebrow pencils? The rich dye adheres to the hair, and after solidification, it appears "thick".
In addition, the dye combines with the cuticle of the skin at the base of the eyebrows or eyelashes, resulting in keratin staining, which appears thick. Generally speaking, after about a month of deactivation, the color is metabolized along with the stratum corneum.
Finally, I would like to remind everyone that all natural ingredients must be treated with caution. Pure natural, pure plant, means unknown, but also means the risk of allergies. Although there are no wide-ranging safety reports, but everyone's skin conditions are different, it is still necessary to consider whether the keratin metabolism is healthy enough, and whether there is a possibility of allergies with natural ingredients.
If you can take risks, it doesn't hurt to buy them and play with them. After all, the blue-black eyebrows are just right for your new Klein blue sweater.
bibliography
[1] Speranza, J.; Miceli, N.; Taviano, M.F.; Ragusa, S.; Kwiecień, I.; Szopa, A.; Ekiert, H. Isatis tinctoria L. (Woad): A Review of Its Botany, Ethnobotanical Uses, Phytochemistry, Biological Activities, and Biotechnological Studies. Plants 2020, 9, 298. https://doi.org/10.3390/plants9030298
Zhang Libin, Wang Zhao, Li Shan, et al. Study on traditional botanical knowledge of mainland bluegrass[J]. Guangxi Plants.
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