What is Carnitine Hydroxycitrate CAS 499770-48-8?

Carnitine Hydroxycitrate CAS 499770-48-8 is a salt-like active formed from L-carnitine and hydroxycitric acid. It is supplied as a white to off-white crystalline powder and is used mainly in body-sculpting cosmetics, slimming treatments and sebum-control skin care.

What is the INCI name and function of this ingredient?

The INCI name is Carnitine Hydroxycitrate. It combines L-carnitine, which helps transport fatty acids into mitochondria, with the hydroxycitrate fraction, which inhibits fatty-acid synthesis and helps reduce lipid storage in skin treatments.

How is Carnitine Hydroxycitrate used in body-sculpting products?

It is formulated into anti-cellulite creams, slimming gels and body-contouring serums at concentrations often in the 0.5-10% range, with around 2% commonly cited for facial sebum-control use. The ingredient is usually combined with caffeine or other lipolytic actives and incorporated into the aqueous or emulsion phase.

What are the key physical and specification points to confirm before ordering?

Confirm the white to off-white crystalline powder appearance, total assay of at least 98.0%, L-carnitine content about 58.0-62.0%, hydroxycitric acid content about 38.0-42.0%, water solubility, pH of a 5% solution in the 5.5-7.5 range, moisture and particle size.

How should Carnitine Hydroxycitrate be handled and stored?

It is water-soluble but hygroscopic, so keep it in tightly sealed packaging in a cool, dry, well-ventilated area and minimize exposure to humid air. It remains stable in aqueous formulations within a normal cosmetic pH range of about 3-7.

Carnitine Hydroxycitrate CAS 499770-48-8

Carnitine Hydroxycitrate (CAS 499770-48-8) is a stable salt complex utilized as a dual-action cosmetic slimming and skin-conditioning active used in body-sculpting formulations. Chemically formed by the ionic bonding of L-Carnitine with hydroxycitric acid, this hygroscopic white powder functions to enhance the transport of fatty acids into mitochondria for energy production. As a highly soluble Carnitine derivative, it is extensively formulated into sports nutrition powders and weight management capsules to support lipid metabolism and exercise recovery. We ensure bulk supply capabilities for this material, providing access to competitive factory pricing and customized specifications to meet specific mesh size and purity requirements. Full technical documentation, including MSDS, TDS, COA, is available to support compliance and safety protocols.

CAS: 499770-48-8
Synonyms: Carnitine hydroxycitrate, L-Carnitine hydroxycitrate, 3-carboxy-2-hydroxy-N,N,N-trimethylpropanaminium 3,4-dicarboxy-3,4-dihydroxybutanoate
Einecs: 691-393-3
Molecular Formula: C13H23NO11
Grade: Cosmetic Grade / Pharmaceutical Grade
Package: 1kg Aluminum Foil Bag / 25kg Fiber Drum

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Product Description

Carnitine Hydroxycitrate acts as a powerful active ingredient in body sculpting products. It is designed to penetrate the skin and assist in the metabolism of lipids.

Synergistic Effect: It combines L-Carnitine (known as the “fat transporter”) with Hydroxycitric Acid (a natural fruit acid derived from Garcinia Cambogia).
Stability: This salt form is chemically stable and less prone to absorbing moisture from the air compared to free L-Carnitine, ensuring a longer shelf life for finished cosmetic products.
Skin Benefits: Besides its potential slimming effects, it provides hydration and helps improve skin texture, leaving skin feeling smoother and firmer. It is fully water-soluble, allowing for clear formulations like gels and serums.

1 Physicochemical Properties

2 Applications

3 Storage Conditions

4 Safety Precautions

Physicochemical Properties

Test Item	Specification (Standard)
Appearance	White to off-white crystalline powder
Odor	Characteristic, slight
Assay (Total Content)	≥ 98.0%
L-Carnitine Content	58.0% – 62.0%
Hydroxycitric Acid Content	38.0% – 42.0%
Solubility	Soluble in water
pH Value (5% Solution)	5.5 – 7.5
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 10 ppm
Arsenic (As)	≤ 2 ppm
Microbial Count	≤ 1000 CFU/g

Applications

Body Slimming Products: The primary ingredient in “fat-burning” creams, lotions, and gels designed to reduce the appearance of cellulite and contour the body.
Firming Lotions: Used in post-pregnancy or weight-loss skin care products to help tighten and firm loose skin.
Sports Gels: Applied topically before workouts to enhance local circulation and metabolism.
Facial Care: Occasionally used in V-shape face lifting serums due to its tightening properties.

Usage Level: Typically recommended at 1.0% – 5.0% in the water phase of the formulation.

Storage Conditions

Moisture Control: Although more stable than pure Carnitine, it is still sensitive to humidity. Store in a strictly dry environment.
Temperature: Store in a cool place (below 25°C), away from direct sunlight and heat sources.
Packaging: Keep inner liners tightly sealed immediately after use.
Shelf Life: 24 months under proper storage conditions.

Safety Precautions

Skin Compatibility: Generally considered safe and mild for topical use. However, avoid using on broken or irritated skin.
Handling: Wear a dust mask and protective gloves during manufacturing to avoid inhalation of powder or direct eye contact.
Eye Contact: If powder enters eyes, rinse thoroughly with clean water for at least 15 minutes.
Ingestion: While components are food-grade, this specific raw material specification is for external cosmetic use. Do not ingest directly.

FAQ - Technical & Supply Chain

Q:
What is Carnitine Hydroxycitrate CAS 499770-48-8?

A: Carnitine Hydroxycitrate CAS 499770-48-8 is a salt-like active formed from L-carnitine and hydroxycitric acid. It is supplied as a white to off-white crystalline powder and is used mainly in body-sculpting cosmetics, slimming treatments and sebum-control skin care.
Q:
What is the INCI name and function of this ingredient?

A: The INCI name is Carnitine Hydroxycitrate. It combines L-carnitine, which helps transport fatty acids into mitochondria, with the hydroxycitrate fraction, which inhibits fatty-acid synthesis and helps reduce lipid storage in skin treatments.
Q:
How is Carnitine Hydroxycitrate used in body-sculpting products?

A: It is formulated into anti-cellulite creams, slimming gels and body-contouring serums at concentrations often in the 0.5-10% range, with around 2% commonly cited for facial sebum-control use. The ingredient is usually combined with caffeine or other lipolytic actives and incorporated into the aqueous or emulsion phase.
Q:
What are the key physical and specification points to confirm before ordering?

A: Confirm the white to off-white crystalline powder appearance, total assay of at least 98.0%, L-carnitine content about 58.0-62.0%, hydroxycitric acid content about 38.0-42.0%, water solubility, pH of a 5% solution in the 5.5-7.5 range, moisture and particle size.
Q:
How should Carnitine Hydroxycitrate be handled and stored?

A: It is water-soluble but hygroscopic, so keep it in tightly sealed packaging in a cool, dry, well-ventilated area and minimize exposure to humid air. It remains stable in aqueous formulations within a normal cosmetic pH range of about 3-7.

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