Witch Hazel Oil Extract
Botanical Oil Extract
Oil extract that adds botanical value to the oil phase of the formula.
TECHNICAL DATA
INCI Witch hazel (Hamamelis virginiana), sunflower oil, tert-butylhydroquinone, citric acid.
CAS 84696-19-5, 8001-21-6, 1948-33-0, 5949-29-1
Appearance Translucent oily liquid
Color Yellow
Odor Characteristic
Acid value 0.2-1.10
Saponification value 140-200
Iodine value 85-140
Peroxide value 1.5-5.5
Solubility In oils and fats
Mesophilic count Maximum 100 CFU/ml
Yeast and Maximum 100 CFU/ml
Total coliforms < 10 CFU/mL
APPLICATIONS
OilsCreamsBalmsHair care products
Softening, conditioning, non-comedogenic, astringent and purifying. Witch hazel is recommended in formulations for combination or oily skin, products for blemish-prone skin, products for normal or oily hair and body-firming products.
DESCRIPTION
WITCH HAZEL OIL
Oil extract of the plant known as witch hazel (Hamamelis virginiana). Its main components are 8–10 % tannins, mainly gallotannins with some condensed catechins and proanthocyanidins, flavonoids, and possibly hamamelitannin. Contains a blend of methylparaben, propylparaben and imidazolidinyl urea at 0.3 % as a preservative for easier handling and storage.
Practical formulation guide
Usage level: An addition of 1–5 % is recommended in hair products; however, higher concentrations show no negative effects.
How to use and incorporate: Aqueous, glycolic or glycerin extracts: add to the water phase or during cool-down (below 40 °C/104 °F). Oil extracts: add to the oil phase or during cool-down. Powdered extracts: first dissolve or disperse in water or glycerin. Adjust the pH at the end.
Formulation tips:
- Extracts contribute color, odor and microbial load: use a broad-spectrum preservative system and run a microbial challenge test on the final formula.
- They may precipitate in the cold or over time; filter or shake before use and check that the color or clarity of the finished product does not change.
- Before scaling up, make a pilot batch and run a stability test (cycles at 4 / 25 / 45 °C/39 / 77 / 113 °F for 4 weeks, checking odor, color, pH, viscosity and separation) in the final packaging.
Compatibility: Aqueous and glycolic extracts are compatible with gels, toners, emulsions and surfactant bases; oil extracts with oils and emulsions. Some tannins and flavonoids darken in the presence of iron or at alkaline pH.
Storage: The optimal storage temperature for the extract is 4–18 °C/39–64 °F, protected from light; if precipitates form during storage, shake until reconstituted before adding to your formulation.
Precautions: Once the container is opened, handle the product with care to avoid secondary microbial contamination. None in particular for the user. Handling: Add it as the last ingredient of the preparation at temperatures below 50 °C/122 °F; dissolving it before use is recommended
Technical information for formulators: This sheet describes industrial uses of the raw material in the development of cosmetic products. It is not an efficacy claim for any finished product. The person responsible for the formulation must validate the concentration, compatibility and claims of their product in accordance with applicable regulations.
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