Vitis Vinifera (Grape) Leaf Extract yra stiprus augalinis antioksidantas, turtingas polifenoliais ir antocianinais, kuris saugo odą nuo oksidacinio streso. Jis pasižymi švelniomis sutraukiamosiomis savybėmis ir padeda palaikyti kraujagyslių vientisumą, todėl yra labai veiksmingas raminant paraudimą ir gerinant pavargusios ar senstančios odos išvaizdą.
- INCI pavadinimas:
- Vitis Vinifera (Grape) Leaf Extract
- Cheminis / mokslinis pavadinimas:
- Vitis Vinifera Leaf Extract
- Dažni sinonimai:
- Red Vine Leaf Extract, Grapevine Extract
| Kategorija: | Antioksidantai |
| Kilmė: | Augalinės kilmės (Vitis vinifera L.) |
| Komedogeniškumo reitingas: | 0 |
| Pagrindinės pramonės šakos: | Kosmetika, farmacija, nutraceutika |
| Tirpumas: | Tirpus vandenyje |
Savybės ir poveikis
| Antioksidantas Protection | |
| Raminamasis poveikis | |
| Brightening/Tone | |
| Sudirginimo rizika: |
Pagrindiniai privalumai:
- Neutralizuoja laisvuosius radikalus, susidarančius dėl UV poveikio ir taršos.
- Mažina odos nuovargio požymius ir gerina mikrocirkuliaciją.
- Pasižymi priešuždegiminėmis savybėmis, padedančiomis nuraminti jautrią ar reaktyvią odą.
- Suteikia natūralų sutraukiamąjį poveikį, padedantį suvienodinti porų išvaizdą.
Galimos rizikos:
- Maža kontaktinio dermatito rizika asmenims, turintiems specifinių alergijų augaliniams ingredientams.
Biologinis poveikis ir kosmetinis profilis
Flavonoids and tannins constitute the primary bioactive profile of Vitis Vinifera (Grape) Leaf Extract. These molecules function as secondary metabolites that protect the plant from environmental pathogens, translating to cellular defense when applied topically. By scavenging reactive oxygen species (ROS), the extract mitigates lipid peroxidation and protein carbonylation within the dermal matrix. This helps prevent the degradation of structural proteins like collagen and elastin, which are often compromised by oxidative stress.
Anthocyanins found within the leaves support vascular tonicity and capillary resistance. This venotonic effect is particularly useful in formulations designed for the under-eye area or „heavy” feeling skin, as it aids in reducing edema and inflammatory redness. Furthermore, the presence of natural organic acids, specifically Tartaric Acid, provides a very mild keratolytic effect that assists in maintaining a smooth skin surface without the irritation associated with stronger chemical exfoliants.
Molecular research via PubMed suggests that the extract may inhibit matrix metalloproteinases (MMPs), enzymes responsible for breaking down the extracellular matrix. By suppressing these enzymes, the extract functions as a preventative anti-aging agent. It is frequently delivered in a base of Glycerin or water to ensure stability and ease of incorporation into aqueous serums and emulsions.
Platesnės taikymo sritys ir kilmė
Vitis vinifera has been cultivated for millennia, but the use of the leaf extract specifically gained prominence in European pharmacopeias for treating chronic venous insufficiency. In cosmetic science, the extract is typically harvested from the red leaves of the vine, which contain higher concentrations of polyphenols compared to green leaves. Beyond facial skincare, it is a staple in body care products aimed at soothing tired legs and improving the look of varicose veins due to its biological impact on circulation.
Integravimas į rutiną
Sinergija:
- Resveratrol: Sustiprina bendrą antioksidacinę galią ir odos ląstelių ilgaamžiškumą.
- Ascorbic Acid: Veikia kartu su Vitamin C, kad perdirbtų antioksidantus ir sustiprintų šviesinamąjį poveikį.
- Niacinamide: Sinergiškai ramina paraudimą ir stiprina odos barjerą.
- Sodium Hyaluronate: Derina raminamąją augalinę naudą su giliu drėkinimu.
- Tocopherol: Suteikia riebaluose tirpų antioksidacinį partnerį vandenyje tirpiam lapų ekstraktui.
Nesuderinamumas:
- Žinomų molekulinių nesuderinamumų nėra; šis ekstraktas paprastai suderinamas su visomis pagrindinėmis kosmetinėmis veikliosiomis medžiagomis.
Klinikinis sutarimas ir saugumas
The Cosmetic Ingredient Review (CIR) Expert Panel has evaluated Vitis Vinifera (Grape) Leaf Extract and concluded it is safe for use in cosmetic formulations at current practice concentrations. It is classified as non-sensitizing and non-irritating in standard dermatological patch tests. Regulatory bodies like CosIng list its functions as skin conditioning, masking, and astringent. Because it is a natural extract, manufacturers often standardize the polyphenol content to ensure consistent efficacy across batches.
Is Vitis Vinifera (Grape) Leaf Extract good for acne-prone skin?
Yes. Its natural astringency helps refine pores, while its anti-inflammatory properties can help calm the redness associated with acne lesions. It has a comedogenic rating of 0, meaning it will not clog pores.
Can this extract help with dark circles?
It can be beneficial for dark circles caused by poor circulation or vascular congestion. The anthocyanins in the extract support microcirculation, which may help reduce the „blue” or „purple” tint under the eyes.
How does it differ from grape seed extract?
While both are rich in Antioksidantass, grape leaf extract contains higher levels of specific flavonoids like quercetin and anthocyanins, whereas grape seed extract is more concentrated in proanthocyanidins (OPCs). The leaf extract is often preferred for its vasoprotective and soothing properties.