Next to Cosphaderm® Pentiol natural and Cosphaderm® Propanediol natural the portfolio was recently expanded to include two additional natural diols with strong antimicrobial efficacy: Cosphaderm® Octiol natural and Cosphaderm® Heptiol natural. With our latest product launch, Cosphaderm® Hexiol natural, our portfolio of natural COSMOS- and NATRUE-compliant diols will be expanded once again.
Cosphaderm® Hexiol natural is a transparent and odourless diol of natural origin with the INCI name 1,2-hexanediol. Two adjacent OH groups and a short carbon chain enable unlimited solubility in water. In addition to its function as a humectant, its pH-independent antimicrobial activity is also noteworthy.osphaderm® Hexiol natural also shows remarkable synergistic effects in combination with other antimicrobial substances, allowing the total amount of preservative to be minimised.
Cosphaderm® Heptiol natural is a pure, colourless diol with an attractive, newly listed 1,2-heptanediol INCI. It offers remarkable clear solubility of up to 1% in water and can be used excellently as a humectant and moisturiser in almost all types of formulations. Due to its chemical structure, consisting of an alkyl chain with seven carbon atoms, the diol is liquid at room temperature. This means that melting is not necessary, ensuring simple and quick processing. In addition, Cosphaderm® Heptiol natural offers strong antimicrobial activity against a broad spectrum of relevant microorganisms even at low concentrations of 0.8–1.0% w/w. The product can be combined with any number of other raw materials and exhibits remarkable synergistic effects with other antimicrobial multifunctionals.
Cosphaderm® Octiol natural consists of natural caprylyl glycol, which is extracted from oil palms. The medium-chain diol is soluble in water up to 0.5% and has moisturising and skin-caring properties. Cosphaderm® Octiol natural is the most potent antimicrobial water-soluble diol in the Cosphatec product portfolio. With a low application concentration of 0.3 to 0.5% it provides highly effective, strong antimicrobial protection against bacteria, yeasts and moulds. At the same time, it offers the possibility of minimising the total amount of combined preservatives.
Uncompromising effectiveness of natural diols
Synthetic diols can be optimally replaced by natural diols.The challenge test results show that there is no significant difference in effectiveness against bacteria, yeasts and moulds.
In addition, both natural diols can be used to stabilise O/W emulsions by reducing the droplet size. Like the other diols in the Cosphaderm® range, the two new additions can be combined with other raw materials as desired. To increase effectiveness against mould, Cosphaderm® Heptiol natural can be combined with, for example, Cosphaderm® pAS natural mix.
WIDE RANGE OF APPLICATIONS
Like all diols in the Cosphatec portfolio, Cosphaderm® Hexiol natural pH-independent antimicrobial efficacy and suitable for a wide range of different formulation types. The antimicrobial efficacy at higher pH values (pH 7) and in a surfactant-based formulation (shower gel) can be seen in the following KBTs. Both challenge test were performed in accordance with ISO 11930 and passed with a B or A criterion.
WHICH DIOL IS THE RIGHT ONE FOR MY FORMULATION?
The choice of diol depends on the formulation itself and the customer's individual requirements for the end product.
We are always available for individual advice and further information.
