Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle

CETYLARACHIDOL.

Valuable CAS 17658-63-8 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

A high-purity, high-molecular-weight C36 Guerbet alcohol designed to deliver intense emolliency and structural barrier support. Unlike linear fatty alcohols, its unique branched architecture provides a luxurious, non-waxy finish, making it a staple in advanced lipid-replenishing formulas.

Emollient Skin conditioning agent Emulsion stabilizer Texture enhancer

Science

It functions by intercalating into the lipid bilayers of the stratum corneum, effectively sealing microscopic gaps between skin cells. This creates a breathable, non-occlusive film that smooths the skin's surface and reinforces the natural barrier against transepidermal water loss (TEWL).


Research

High confidence
Effective range 1–10%
Optimal

5%

Key findings

  1. 01 Clinical trials utilizing 1-10% concentrations demonstrated significant reductions in skin erythema and moisture loss when compared to standard surfactant-based cleansers.
  2. 02 Technical assessments at 2-5% concentrations highlight its ability to provide superior 'cushion' and a velvety skin feel compared to shorter-chain lipid alternatives.

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

To achieve measurable barrier repair and redness reduction as seen in clinical wash trials, a minimum of 1% is typically required. At levels below 0.5%, it is likely serving only as a secondary emulsion stabilizer rather than a primary active lipid.


The Formula

Solubility
Oil
Optimal pH 4 – 9
0 7 14

Stability

Highly resistant to oxidation and rancidity due to its saturated hydrocarbon structure. It improves formula stability by increasing the viscosity of the oil phase.

Synergies

  • Ceramides
  • Sterols
  • Lipophilic surfactants

Conflicts

  • Strong oxidizing agents

Safety

CIR Status
Safe as used
Max tested
10%
Pregnancy
Safe
Sensitization risk Low

Classified as non-irritating and non-sensitizing within the long-chain fatty alcohol group.


Your Skin

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

A sophisticated C36 lipid that excels in dry and sensitive skin protocols by providing professional-grade barrier reinforcement and an elegant sensory profile.


Related

Finding similar ingredients…