Define preservative

heraklitheraklit Member, PCF student
edited October 2014 in Formulating
What acts as preservative in this formula of a big brand anti-dandruff shampoo? Maybe Climbazole - Salicylic Acid?
Aqua** (Water**), Aqua (Water), Sodium Laureth Sulfate, Zinc Coceth
Sulfate, Potassium Undecylenoyl Hydrolyzed Wheat Protein, Glycereth-90
Isostearate, Laureth-7 Citrate, Cocamidopropyl Betaine, Sodium Methyl
Cocoyl Taurate, Capryloyl Glycine, Lavandula Angustifolia (Lavender)
Flower* Extract, Thymus Vulgaris (Thyme) Flower/Leaf* Extract, Glyceryl
Oleate, Coco-Glucoside, Gossypium Herbaceum (Cotton) Extract, PEG-60
Almond Glycerides, Propolis Extract, Saponaria Officinalis Leaf Extract,
Rosmarinus Officinalis (Rosemary) Leaf* , Butylene Glycol, Pelargonium
Graveolens Flower Oil*, Climbazole, Salicylic Acid, Cedrus Atlantica
Bark Oil*, Arginine, Panthenol, Disodium EDTA, Potassium Chloride,
Glycerin, Laureth-2, Alpha-Glucan Oligosaccharide, Citric Acid, Sodium
Hydroxide, Guar Hydroxypropyltrimonium Chloride, Parfum (Fragrance),
Linalool, Benzyl Salicylate


  • and maybe benzyl salicylate..
  • Chemist77Chemist77 Member, PCF student
    edited October 2014
    Benzyl Salicylate is essentially a component of the fragrance in the formula, and not a preservative. The anti dandruff agents seem to double up as preservatives and maybe one or two of the extracts too may help in preservation here.
  • MakingSkincareMakingSkincare Member, Professional formulator
    Salicylic acid would take care of bacteria, if added at 0.5% and the pH is less than 4.  The glycols help reduce water activity. The EDTA also helps the preservative. The inci name "Parfum" could be naticide or p-Anisic Acid/Dermosoft® 688 eco.
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  • BelassiBelassi Member, PCF student
    First, it appears to me as if the ingredients list is out of order, because I don't think that CAPB would be lower in the list than, say, hydrolysed wheat protein! It appears to be a SLES/CAPB surfactant mixture so I would expect the CAPB to be at least 10% of this product while the wheat protein would likely be 1% or 2% at most.

    Secondly, regarding preservatives, Propolis extract is a known antiseptic product and preservative (how to incorporate what is basically an oil soluble resin in a shampoo isn't something I would like to tackle, though).
    Climbazole is an anti-fungal which might (I really don't know) offer preservation against common things like A.Niger. I suspect (without Googling it) that the essential oil of cedar may also offer antibacterial/antifungal activity.
    Cosmetic Brand Creation. Concept to name to IMPI search to logo and brand registration. In-house graphic design inc. Pantone specs. Cosmetic label and box design & graphics.
  • I think salycilate derivatives has antibacterial characteristic and anionic surfactant has too

  • heraklitheraklit Member, PCF student
    The ingredients list is from the official site of the brand. Thank you all for your responses.
  • PerryPerry Administrator, Professional Chemist
    Can you tell us what brand it is?
  • heraklitheraklit Member, PCF student
    Link is wrong. It's APIVITA Propoline Anti-Dandruff Shampoo for Oily Hair a Greek big brand.
  • BelassiBelassi Member, PCF student
    So, they're using the properties of propolis, a bee-produced resin, in this. I experimented with propolis, but I found the solubility problems were enough to put me off using it. Usually it's supplied as a tincture with an alcohol base.
    Cosmetic Brand Creation. Concept to name to IMPI search to logo and brand registration. In-house graphic design inc. Pantone specs. Cosmetic label and box design & graphics.
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