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SODIUM DEOXYCHOLATE.

Valuable CAS 302-95-4 / SKIN CONDITIONING

Sodium Deoxycholate is a bile salt derivative recognized for its ability to disrupt fat cell membranes, making it effective for localized fat reduction. In cosmetic applications, it contributes to skin tightening and has shown promise in enhancing skin elasticity and texture.

Summary

Skin Conditioning Lipolytic Agent Skin Tightening Elasticity Booster

Science

Mechanism of Action

Sodium deoxycholate acts as a potent detergent, directly solubilizing lipid bilayers and disrupting adipocyte (fat cell) membranes. This action causes fat cells to release their contents, leading to localized fat reduction. It may also play a role in influencing collagen production and improving skin elasticity, contributing to a firmer, smoother appearance. When delivered subcutaneously, it triggers an inflammatory response that further aids in adipose tissue breakdown and removal.

Research

Clinical Evidence

Medium confidence
Effective range 0.04–2%
Optimal

N/A

Key findings

  1. 01 Topical formulations at 0.04% to 0.1% (w/v) demonstrated effective lysis of preadipocytes and cellular membrane disruption in differentiated adipocytes.
  2. 02 In a pharmaceutical context, a 1.5% concentration combined with hyaluronic acid resulted in a 30% increase in skin elasticity over a 12-week period.
  3. 03 Injectable solutions containing 1.25% or 1-2.5% were found effective and safe for targeted localized fat deposits, inducing adipocyte lysis with minimal adverse events.

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
0.04%
Red flag below
0.03%

While sodium deoxycholate has demonstrated topical efficacy in concentrations as low as 0.04% (w/v) for adipocyte lysis, formulations claiming fat reduction or skin tightening should contain at least 0.04% to be considered effective. Concentrations below this threshold, particularly those below 0.03%, are likely insufficient to deliver meaningful benefits.

The Formula

Formulation

Solubility
Water
Optimal pH 7.5 – 9.5
0 7 14

Stability

Aqueous solutions are stable in neutral to alkaline conditions (pH 5-9). Maintaining a pH between 8.0 and 8.5 can help inhibit precipitation for solutions containing less than 5% w/v sodium deoxycholate, as precipitation may occur if the pH drops to approximately 5.0-5.1.

Synergies

  • Hyaluronic Acid (for enhanced skin elasticity)

Conflicts

  • Cationic surfactants (e.g., cetrimonium bromide), which may cause precipitation.

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
5%
Sensitization risk Unknown

Sodium deoxycholate is FDA-approved as a cosmetic ingredient and complies with EU cosmetic regulations. While high concentrations exceeding 5% may lead to skin redness or dryness, it is considered safe for topical use within recommended cosmetic ranges (0.1-2% w/w). It's important to distinguish topical cosmetic use from injectable applications, which are FDA-approved for specific medical procedures and can cause localized side effects such as heat, erythema, swelling, and intense pain when administered by qualified personnel.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Sodium deoxycholate is a valuable ingredient for targeted body and facial contouring formulations, offering lipolytic action and potential skin tightening and elasticity benefits at appropriate concentrations.

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