Ingredient · Botanical Antioxidant + Soothing Agent
Green Tea Extract
INCI · Camellia Sinensis Leaf Extract
Related names and forms: Green Tea Extract · Camellia Sinensis. This list does not indicate synonyms or exact ingredient matches.
Green tea extract (INCI: Camellia Sinensis Leaf Extract) is a botanical extract rich in polyphenols, especially catechins. The marker component most often associated with its effects is EGCG (epigallocatechin gallate). Its antioxidant profile and soothing signals are frequently studied in cosmetic literature, and it is also described as a balancing component for oily and combination profiles. As a whole extract, its effects depend on standardisation (EGCG/polyphenol content) and the complete formula. An important formulation consideration is that green tea polyphenols are sensitive to oxidation; darkening or browning after opening is assessed in relation to freshness. It appears on labels as 'Camellia Sinensis Leaf Extract'. As a whole extract, it has no single INCI-equivalent compound CID in PubChem. The marker component EGCG has its own record, but is not the extract itself; the reference framework is provided through evidenceNotes.
i. Cosmetic Functions
Frequently Discussed Effects
The following headings summarise areas of effect frequently discussed in the literature; visible results in each area require regular use and a suitable formula.
Antioxidant Properties
Its polyphenol content is associated with signals of protection against free radicals.
A Soothing Feel
Often features in formulas addressing redness tendencies in sensitive profiles.
Sebum Balance Signals
Can serve as a balancing component in formulas for oily and combination skin.
Mechanism
What Happens Within the Skin?
The following points summarise mechanisms from dermocosmetic literature in plain English. Klaris presents them as background information to help readers understand the context, not as medical claims.
Step 1
A Polyphenol- and Catechin-Rich Extract
A whole botanical extract rich in catechins, particularly EGCG.
Step 2
Antioxidant Properties
Its polyphenol content is associated with protective signals against free radicals in an antioxidant context.
Step 3
A Soothing Feel
Features in formulas communicating a more comfortable appearance for sensitive and redness-prone profiles.
Step 4
Sebum Balance Context
Can serve as a balancing component in formulas for oily and combination skin.
Step 5
Sensitivity to Oxidation
Polyphenols are prone to oxidation; freshness, antioxidant protection and suitable packaging affect formula quality.
ii. Role in the Formula
How Is It Read on a Label?
Green tea extract is generally formulated at 0.1% - 2% on an extract basis. Formulas with standardised EGCG offer a more consistent perceived effect. It features as one component of an antioxidant trio or a group of soothing ingredients.
A Closer Look · pH, Stability, Synergy
Green tea extract is common in formulas with antioxidant and soothing claims, generally at low extract-based doses of 0.1%-2%. Since EGCG is the marker most often associated with its effects, standardised formulas that state EGCG content offer a more consistent basis for assessment; 'contains green tea' alone does not guarantee standardisation. Oxidation is the most critical formulation issue: green tea polyphenols can degrade with light, heat and oxygen, causing colour to darken. Well-designed formulas manage this with antioxidant support and suitable opaque packaging; pronounced browning is assessed in relation to freshness. A common confusion is to treat drinking green tea and applying it to the skin as the same context. They are different routes, and topical use is assessed through the complete formula. Klaris considers the antioxidant as a measured component within the formula's antioxidant system, without turning it into a promise of 'miracle protection'. As a botanical extract, it can occasionally cause sensitivity; observing a new product on a small area first may be a more measured approach. Klaris assesses a green tea product's standardisation (EGCG), oxidation management and overall formula together.
Typical Concentration Range
0.1% - 2% (extract-based)
Ingredient Family
Soothing Ingredients
iii. Sensitivity Advisory
A Note on Extra Care in Context
As a botanical extract, it can occasionally cause sensitivity; observing it on a small area before first use may be a more measured approach.
A sensitivity advisory is not an instruction for use; where individual health circumstances, pregnancy or known sensitivities are involved, discussing the decision with your doctor may be a more contextual approach.
Common Misconceptions
Frequently Confused Points
Common Belief
Green tea extract provides powerful or miraculous antioxidant protection.
A More Contextual Reading
Green tea extract is an ingredient discussed in an antioxidant context, not an absolute promise of 'miracle protection'. Its effects are considered alongside standardisation and the formula's antioxidant system.
Common Belief
Drinking green tea and applying it to the skin have the same effect.
A More Contextual Reading
Oral consumption and topical use are different contexts. The behaviour of green tea extract in a product is assessed through the complete formula, not equated with the drink.
Common Belief
EGCG is the same as green tea extract.
A More Contextual Reading
EGCG is the principal marker polyphenol in green tea extract. The whole extract contains multiple catechins and other components; the two are considered in different contexts.
Common Belief
As a natural antioxidant, it cannot deteriorate and suits every skin.
A More Contextual Reading
Green tea polyphenols are sensitive to oxidation, so freshness matters. 'Natural' also does not automatically mean suitable; individual sensitivity is possible.
Scientific Basis
Sources and Their Scope
The following headings indicate areas of research; they are not citations of a specific publication or confirmation that every statement on this page has been verified. The links provided should be read with their individual scope in mind.
- International INCI / CosIng database
- Dermocosmetic research publications
- Literature evaluating sensitive profiles
Starting Points for Independent Research
These links lead to official databases and serve as starting points for searches.
iv. Related Ingredients
Ingredients Often Read Together
v. Soothing Ingredients Family
Other Ingredients in the Same Family
Explore ingredients in the same functional family to deepen your reading of formulas.
vi. Academy · Related Reading
For a Closer Look
Klaris · Example Analyses
How Does Green Tea Extract Feature
in Your Products?
Explore product examples to see the ingredient list, general assessment and match score that changes with the example profile together.
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