Name of the product: Witch hazel dry extract / Winterbloom dry (powdered) extract
Plant species: Hamamelis virginiana L.
Used part of herb: Leaf
Ingredients (INCI): Hamamelis Virginiana Leaf Extract
CAS No.: 68916-39-2
EINECS No.: 283-637-9

Active substances:

Tannins (a mixture of catechins, gallotannins, plus cyanidin and delphinidin type proanthocyanidins), mainly hamamelitannin and hamamelose, catechins, mainly (+)-catechin, (+)-gallocatechin, (–)-epicatechin gallate, (–)-epigallocatechin gallate, polyphenolic acids (caffeic and gallic acids), flavonoids such as kaempferol, quercetin, quercitrin, and isoquercitrin, volatile oil (consists of aliphatic alcohols, carbonyl compounds - ionones, aliphatic esters, and traces of safrole).

Properties:

For the witch hazel extract are reported astringent, anti-inflammatory, and locally haemostatic activities. Witch hazel leaf fluid extract is vasoconstrictive agent and, therefore, can significantly reduce skin temperature. Astringent, anti-septic, and haemostatic properties of witch hazel leaf preparations have been demonstrated in animal experiments and their use is recommended for minor skin injuries, local inflammation of skin and mucous membranes, haemorrhoids, for varicose veins (painful and heavy legs), in case of venous insufficiency, for bruises, sprains, and relief of neurodermatitis atopic symptoms. It is very helpful in case of the treatment of sensitive and aged skin providing skin firming and integration. Antiseptic properties are appreciated for the avoiding of the unsuitable micro-flora which leads to set up of the normal skin functions.

Product specification:

1. Description Brown coarse powder of the characteristic odor
2. Identity (by TLC) The relative retentions of the particular substances in tested extract correspond to reference solution
3. Loss on drying NMT 5.0 % m/m
4. Ethanol content NMT 0.5 % m/m

Storage conditions:

The product must be stored in tightly closed original containers in temperature range from + 5 °C to + 25 °C.

Retesting period:

18 months