Black Tea

Beste

Plantenextracten

Black Tea at a glance

  • From the Camellia sinensis plant
  • Comes from older, more oxidized leaves than green tea
  • Contains antioxidant polyphenols
  • Also a source of theaflavins, which fight UVB damage

Black Tea description

Black tea is one of five types of tea derived from the leaves of the _Camellia sinensis_ tree – the other four being oolong, white, yellow, and green teas. The difference between black tea and these other teas is that black tea is more oxidized than the rest, hence its darker color. Black and oolong teas are also made from leaves that are older than those used to make green, yellow, and white teas. Like other teas, black tea is rich in components beneficial to skin health. These compounds include antioxidant polyphenolics that fight free-radical damage. Research finds that black tea typically has a lower content of some polyphenols compared with green tea, in part because of the oxidation process it goes through. Black tea, however, is _higher_ in compounds known as theaflavins, which are created by that oxidation process. Studies have found those theaflavins help protect skin cells from UVB-induced damage, giving black tea an advantage in that regard over other teas. The independent Cosmetic Ingredient Review board has found that black tea is safe in its current use in cosmetics. This ranges from 5–10% with black tea being a small portion of a water- and glycerin-based blend.

Black Tea references

  • Foods, February 2025, pages 1-18
  • Discover Chemistry, October 2024, ePublication
  • Archives of Dermatological Research, September 2022, pages 321-331
  • Cosmetics, June 2023, pages 1-19
  • Journal of Photochemistry and Photobiology B: Biology, November 2021, ePublication
  • International Journal of Toxicology, December 2019, pages 48S-70S

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Beoordelingen van ingrediënten

Beste

Bewezen en ondersteund door onafhankelijk onderzoek. Uitstekend actief ingrediënt voor de meeste huidtypen of huidproblemen.

Goed

Noodzakelijk om de textuur, stabiliteit of doordringbaarheid van een formule te verbeteren.

Gemiddeld

Doorgaans niet-irriterend maar kan esthetische, stabiliteits- of andere problemen hebben die het nut ervan beperken.

Slecht

De kans op irritatie is aanwezig. Het risico wordt vergroot als het gecombineerd wordt met andere problematische ingrediënten.

Slechtste

Kan irritatie, ontsteking, droogheid, enz. veroorzaken. Kan in sommige gevallen voordelen bieden, maar over het algemeen is bewezen dat het meer kwaad dan goed doet.

onbekend

We konden dit niet vinden in onze Ingredient Dictionary. We registreren alle ontbrekende ingrediënten en werken ze regelmatig bij.

Geen beoordeling

We hebben dit ingrediënt nog niet beoordeeld omdat we het onderzoek ernaar nog niet hebben bekeken.