Sideritis Scardica Flower/Leaf/Stem Extract: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 30, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Sideritis Scardica Flower/Leaf/Stem Extract?

Sideritis scardica, often called Greek mountain tea, grows wild on the rocky slopes of the Balkans and has long been brewed as a calming herbal drink. The extract used in cosmetics comes from its flowers, leaves and stems, which are rich in flavonoids, phenolic acids and small amounts of essential oils that give the plant its fresh herbal scent. To make the ingredient, the plant parts are dried, milled then soaked in a gentle solvent such as water, glycerin or propylene glycol. After soaking, the liquid is filtered and concentrated, leaving a clear to amber extract that can be blended straight into skin care formulas. Brands add it to serums, anti aging creams, moisturizers, soothing masks, eye treatments and after sun products when they want a natural active that helps skin cope with daily stress.

Sideritis Scardica Flower/Leaf/Stem Extract’s Cosmetic Benefits/Uses

In skin care this botanical delivers several helpful actions that improve both the feel and resilience of the skin.

  • Antioxidant – Its flavonoids neutralize free radicals created by UV rays and pollution which helps slow the look of premature aging and keeps formulas stable for longer.
  • Skin Conditioning – The extract contains sugars and polyphenols that lightly hydrate, leaving skin soft, smooth and comfortable without a greasy finish.
  • Skin Protecting – By soothing irritation and reinforcing the skin barrier it helps defend against environmental aggressors such as urban dust and changing weather.

Who Can Use Sideritis Scardica Flower/Leaf/Stem Extract

This gentle plant extract suits most skin types including normal, dry, combination and oily. Its light texture and non greasy finish make it comfortable even for easily clogged or acne-prone skin, while the soothing flavonoids are welcome on sensitive or redness-prone complexions. There are no known reasons for very dry or mature skin to avoid it, though they may still want richer emollients alongside it for extra moisture.

Because the ingredient is derived entirely from plant material and no animal by-products are used in its processing, it is considered vegan and vegetarian friendly.

No specific warnings exist for pregnant or breastfeeding women when the extract is used on the skin, yet this is not medical advice. Anyone who is expecting or nursing should run any new skincare product past a qualified doctor to be on the safe side.

The extract does not increase sensitivity to sunlight so there is no special need to limit day-time use. Standard daily sunscreen is still recommended for overall skin health.

Potential Side Effects/Adverse Reactions

Responses to topical Sideritis Scardica Flower/Leaf/Stem Extract can vary from person to person. The points below describe potential but uncommon effects. When the ingredient is used at typical cosmetic levels and in a well-formulated product most users experience only its benefits.

  • Redness or stinging – a small number of people may notice mild, short-lived irritation
  • Allergic contact dermatitis – extremely rare but possible if someone is allergic to plants in the Lamiaceae family
  • Interaction with highly active treatments – pairing with very strong exfoliating acids or retinoids could amplify irritation in sensitive skin

If any burning, swelling or a persistent rash develops stop using the product and consult a healthcare professional.

Comedogenic Rating

Rating: 0 / 5

Sideritis Scardica Flower/Leaf/Stem Extract is mostly made up of water-soluble polyphenols and tiny amounts of volatile oils so it contains virtually no heavy lipids that could lodge in pores. Current lab and user reports show no tendency for it to create or worsen comedones. It is therefore considered non-comedogenic and fine for skin that breaks out easily. The only time it might feel heavier is if it is blended into a very rich cream that already contains pore-clogging oils so always check the full ingredient list.

Summary

Sideritis Scardica Flower/Leaf/Stem Extract offers antioxidant protection, light skin conditioning and barrier support thanks to its mix of flavonoids, phenolic acids and natural sugars that mop up free radicals, bind water and calm irritation. While Greek mountain tea is famous as a drink the extract is still a niche addition in skincare, mainly showing up in clean beauty lines and a handful of anti aging serums.

Safety data and real-world use point to a low risk of irritation or breakouts making it suitable for almost anyone. As with any new skincare product a quick patch test behind the ear or on the inner arm is smart before applying it to the face.

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