NO liquid Silk Amino Acids are manufactured without preservatives, including ours. Preservatives are necessary to maintain the integrity of the raw material. We have provided the preservative used by the manufacturer below for your reference.

Protein obtained from natural silk from the cocoon of the silkworm. With excellent moisture binding properties and a silky smooth feel. The exceptional purity of silk is shown by the clarity of its film and low ash content. Clear, amber liquid, characteristic, mild odor. Preserved with benzyl alcohol, sodium benzoate, and potassium sorbate. Protein content is about 10%. pH 4.0-6.0. Water soluble.

The preservative system used for this product is ECOCert approved for use in Certified Organic products.

INCI: Hydrolyzed Silk
Purity: 95-99%
Physical Form: Amber Liquid with characteristic but mild odor
Melting Point: N/A
Applications: Topical
Usage Rate: Up to 2% (start at a .5% or lower)
Solubility: Water
Odor: Characteristic of hydrolyzed proteins, faint
pH (as supplied): 3.5-5.5
Preserved with: Benzyl Alcohol, Potassium Sorbate, Sodium Benzoate

Silk Hydrolyzed Liquid