Calocedrus Formosana Leaf 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 24, 2025
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All information on this page is verified using The Personal Care Products Council's (PCPC) INCI database. Our ingredient analyses are based exclusively on PCPC's technical data to ensure accuracy and reliability.

What Is Calocedrus Formosana Leaf Extract?

Calocedrus Formosana Leaf Extract comes from the needles of the Taiwanese incense cedar, a tree that grows in the mountain forests of Taiwan. The leaves are rich in natural sugars, moisture-binding polysaccharides, aromatic essential oils and gentle plant acids. Local communities have long valued the wood for its pleasant scent and resistance to rot, and skincare makers began looking at the leftover leaves as a source of skin-loving ingredients in the late 20th century when green beauty trends took off.

To create the extract, freshly collected leaves are washed, air-dried then soaked in a mix of water and food-grade solvents such as glycerin or propylene glycol. Low heat or vacuum processes pull out the active compounds. The liquid is then filtered and concentrated into a clear slightly aromatic solution that blends easily with creams, gels and lotions.

You will most often see Calocedrus Formosana Leaf Extract in hydrating sheet masks, daily moisturizers, soothing toners, after-shave balms, lightweight serums and anti-aging formulas aimed at boosting skin comfort and softness.

Calocedrus Formosana Leaf Extract’s Cosmetic Benefits/Uses

In formulas this plant extract offers several helpful roles:

  • Humectant – draws water from the air and holds it at the skin surface which helps keep the complexion plump and dewy throughout the day
  • Skin conditioning – smooths rough spots and supports a more even texture so skin feels soft to the touch
  • Emollient – forms a light breathable layer that locks in moisture and reduces the look of fine dry lines

Who Can Use Calocedrus Formosana Leaf Extract

This leaf extract is typically well tolerated by all skin types. Dry and mature skin benefit most from its moisture binding and emollient film, while normal and combination skin enjoy added softness without a heavy feel. Oily or breakout-prone users can also use it because the extract is water based and non-occlusive so it will not clog pores. No specific skin type needs to avoid it unless there is a known allergy to cedar or cypress plants.

Because it is entirely plant derived with no animal by-products, Calocedrus Formosana Leaf Extract is suitable for vegans and vegetarians. Only the sourcing of other ingredients in the final product would change that status.

Current research shows no safety flags for topical use during pregnancy or while breastfeeding. Still, this is not medical advice and anyone who is pregnant or nursing should ask a doctor before adding new skincare products.

The extract does not increase sun sensitivity, and there are no special timing rules for daytime or night use. Its mild cedar scent may be noticeable in higher concentrations but usually fades once applied.

Potential Side Effects/Adverse Reactions

Reactions to topical Calocedrus Formosana Leaf Extract differ from person to person. The issues below are possible but uncommon when the ingredient is correctly incorporated into a finished product.

  • Mild redness or warmth at the site of application
  • Transient stinging or tingling on very sensitive skin
  • Allergic contact dermatitis in individuals allergic to cedar or cypress plants
  • Increased irritation if layered with strong exfoliating acids or prescription retinoids

If any troublesome reaction develops stop using the product and consult a healthcare professional.

Comedogenic Rating

Rating: 0 – Calocedrus Formosana Leaf Extract is almost entirely water soluble and contains very little oil or wax so it does not sit heavily on the skin or block pores. It behaves much like aloe or glycerin by pulling in water rather than forming a greasy film. For this reason the extract is generally considered safe for acne-prone or breakout-prone skin. No data suggest it worsens blackheads or whiteheads.

Summary

Calocedrus Formosana Leaf Extract acts as a humectant, skin conditioner and emollient. Its natural sugars and polysaccharides grab water from the air and hold it against the skin, the light film they create smooths rough patches, and its gentle essential oil components leave skin feeling softer and more comfortable.

The ingredient is still a niche choice compared with classics like aloe or hyaluronic acid, but it is showing up more often in Korean and Taiwanese hydrating masks and gel creams thanks to its clean label appeal and pleasant cedar scent.

Current evidence points to a very safe profile for topical use with minimal risk of irritation or clogged pores. As with any new skin care ingredient it is smart to do a small patch test first to make sure your skin agrees with it.

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