“Ingredient-family evidence: stratum-corneum free fatty acids, including palmitic/stearic-type long-chain fatty acids, are core barrier lipids that support skin permeability-barrier function.”
Stearic Acid (Stearic: 50-56%, Palmitic: 41-50%, eq. Cutina FS45)
Cosmetics
Code: 32834
It is a fatty acid commonly used in cream and lotion formulations for skin application.
Stearic: 50-56%, Palmitic: 41-50%, equivalent to Cutina FS45.
Stearic acid is a fatty acid commonly used in cream and lotion formulations.
Stearic: 50-56%, Palmitic: 41-50%, equivalent to Cutina FS45.
Usage: For use with any skincare product.
Mixing method: Dissolve in the oil phase.
Usage rate: 1-20%
Product characteristics: White flake powder.
Solubility: Soluble in oil.
Storage: For long-term storage, keep at room temperature. Shelf life is at least 24 months.
INCI Name : Stearic acid
- Room (25-40C)
- 24 Months from manufacturing or testing date.
- 0.10% - 20.00%
- 0.00%
- Add into oil phase. Heat tolerant.
- Heat Tolerant
- 3.50 - 9.00
- Soluble in Oil
- Cream, Lotion, Serum, Skin Care Base Ingredient
- -
| Test Name | Specification |
|---|---|
| Acid Value | 204-210 mgKOH/g |
| Saponification Value | 205-211 mgKOH/g |
| Iodine Value | 0.5maximum |
| Moisture,%wt | 0.3maximum |
| color | - |
| lovibond | 0.3maximum |
| Color APHA | 50maximum |
| Titer | 55-58C |
| Composition ,%wtBy GC | - |
| C12: lauric acid | 1maximum |
| C14:Myristic acid | 2maximum |
| C16:Palmitic acid | 41-50 |
| C18:0: Stearic acid | 50-56 |
| C18:1: Oleic Acid | 1maximum |
“Physiologic lipid-mixture evidence: topical mixtures containing free fatty acids with ceramides and cholesterol improved barrier repair after skin barrier disruption, supporting use of fatty-acid components for barrier-support formulations.”
“Closest formulation evidence: a cream containing skin-identical lipids including palmitic acid was tested on tape-stripped and detergent-perturbed human skin for barrier recovery measured by TEWL.”
“Moisturizer-review evidence: long-chain fatty acids such as palmitic acid and stearic acid are described as common moisturizer/emollient ingredients used to improve dry or inflammatory skin conditions through barrier-supporting formulations.”
“General emollient evidence: topical emollients and moisturizers can improve dry-skin appearance and barrier function; stearic/palmitic acid should be considered supportive excipients rather than proven standalone actives.”
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