Oak CO2 Extract (bark) 100 g

What Makes Oak Bark CO2 Extract a Valuable Astringent Ingredient in Modern Formulations

Oak bark has long been valued for its high tannin content and pronounced astringent properties, and supercritical carbon dioxide extraction now allows manufacturers to obtain a concentrated form of these compounds without solvents or damaging heat. This raw material belongs to the CO2 Extracts category, which brings together concentrated plant complexes used across skincare, haircare, veterinary and related industrial sectors. The gentle extraction method preserves tannins, flavonoids and other active compounds responsible for the astringent, sebum-regulating and toning action of the original bark.

The most common use of oak bark CO2 extract is in formulations for oily and blemish-prone skin, where its astringent action helps tighten the appearance of pores, reduce excess sebum and give the complexion a more matte, refined look. It is widely added to toners, lotions, masks and creams designed for combination and oily skin types. A second major application area is hair and scalp care: the extract appears in shampoos and serums targeting excessive scalp oiliness, dandruff and hair thinning, supporting stronger-looking hair through the toning effect of its tannin content. Another growing niche is natural deodorant and antiperspirant manufacturing, where the astringent power of oak bark serves as a gentler alternative to aluminum salts for managing perspiration. The extract is also found in foot care products for excessive sweating, in aftershave formulations valued for their soothing and tightening effect, and in niche perfumery, where the woody facets of oak bark act as a natural fixative for fragrance compositions. In veterinary cosmetics, the extract is included in shampoos and sprays for animals prone to skin irritation.

The recommended usage rate for oak bark CO2 extract in finished formulations typically ranges from 0.1 to 1 percent, depending on the product type and the desired intensity of the astringent effect. It should be added during the cooling phase of production, at temperatures below 40 degrees Celsius, since CO2 extracts contain heat-sensitive volatile and active fractions that can degrade under excessive heating. Before blending into a water phase, it is advisable to first dissolve the extract in a small amount of carrier oil or a suitable solubilizer to ensure even distribution throughout the batch. This extract pairs well with other concentrated botanical extracts, making it easy to build multifunctional formulations: for antioxidant and vitamin-rich blends, it works well alongside Cloudberry CO2 Extract, for silhouette-focused and lipid-metabolism formulas it can be paired with Garcinia CO2 extract, and for nourishing, omega-rich recipes it combines effectively with Chia CO2 Extract.

The extract should be stored in a tightly sealed container, away from direct light and heat, in a cool and dry place to preserve the stability of its active compounds throughout the shelf life. The 100 gram size is well suited to studio and small-batch manufacturing, providing enough material to test formulations, produce trial batches and run limited commercial production runs without risking spoilage before the material is fully used.

Balancing Scalp Serum for Oily Roots

Aloe vera gel 60 ml

Oak bark CO2 extract 1 g

Niacinamide powder 2 g

Panthenol 3 g

Vegetable glycerin 4 ml

Broad spectrum preservative 3 ml

Rosemary essential oil 6 drops