Sorbitol

✦ Powerful humectant that draws and locks moisture into the skin for long-lasting hydration
✦ Delivers a smooth, non-tacky skin feel superior to many other polyol humectants
✦ Essential ingredient for creating clear, transparent melt and pour soap bases
✦ Functions as a plasticizer and texture improver in creams, lotions, and gels
✦ Non-irritating and gentle enough for sensitive skin and baby care formulations
✦ Derived from natural glucose sources and suitable for a wide range of cosmetic applications
✦ Excellent crystallization inhibitor that improves stability in sugar-based and soap formulations

Sorbitol is a six-carbon sugar alcohol first discovered in the berries of the mountain ash tree (Sorbus aucuparia) in 1872. It occurs naturally in many fruits including apples, pears, cherries, and peaches. In cosmetics, Sorbitol has been used for decades as a reliable humectant and texture modifier across skincare, oral care, and soap making applications.

What makes Sorbitol particularly valuable to formulators is its ability to attract moisture without leaving a sticky or heavy residue on the skin. It functions by forming hydrogen bonds with water molecules, holding hydration within the upper layers of the epidermis. In soap bases, Sorbitol acts as a plasticizer and prevents sugar crystallization, which is why it is the key ingredient behind transparent glycerin soaps. Its low glycemic impact and non-cariogenic properties also make it a staple in toothpaste and oral care formulations.

Rabibazaar supplies cosmetic-grade Sorbitol suitable for DIY beauty formulators, soap makers, skincare developers, and oral care product creators.

INCI Name : Sorbitol
Chemical Name : D-Glucitol
CAS Number : 50-70-4
Molecular Formula : C6H14O6
Appearance : Clear, colorless, viscous liquid (70% solution) or white crystalline powder
Odor : Odorless
pH (1% solution) : 4.5 to 7.0
Solubility : Freely soluble in water; slightly soluble in ethanol
Specific Gravity : 1.28 to 1.30 (70% solution at 25°C)
Flash Point : Not Applicable (aqueous solution)
HLB Value : Not Applicable
Recommended Use Level : 2% to 15% in cosmetic formulations; up to 50% in soap bases
Type : Humectant / Polyol / Plasticizer
Shelf Life : 24 months when stored properly in sealed containers

Skincare (Creams, Serums, Lotions) ★★★★☆
Sorbitol is an excellent humectant for daily skincare products, providing lightweight hydration without greasiness. Use at 2% to 8% in the water phase for a smooth, moisturizing feel.

Haircare (Shampoo, Conditioner, Masks) ★★★☆☆
Sorbitol adds mild conditioning and moisture retention to hair formulations. Use at 2% to 5% in shampoos or conditioners for improved slip and softness.

Soap Making (Cold Process, Melt and Pour) ★★★★★
Sorbitol is essential for creating transparent melt and pour soap bases and prevents crystallization. Use at 10% to 50% in melt and pour bases for optimum clarity and plasticity.

Body Care (Scrubs, Butters, Balms) ★★★★☆
Works well in body lotions and scrubs where a non-sticky moisturizing feel is desired. Incorporate at 3% to 10% in the aqueous phase for smooth application.

Oral Care (Toothpaste, Mouthwash, Lip Products) ★★★★★
Sorbitol is a cornerstone humectant in toothpaste formulations, preventing drying and improving texture. Use at 20% to 40% in toothpaste as a base humectant and sweetener.

In my experience, Sorbitol is one of the most underrated humectants available to formulators. I reach for it whenever I need hydration without the heavy, tacky residue that glycerin can sometimes leave, especially in hot and humid climates like Pakistan where glycerin can feel too sticky on the skin. Sorbitol also improves the sensory profile of emulsions, making creams feel silkier during application. In soap making, it is the single most important ingredient for achieving true transparency in a glycerin soap base.

ADVANCED TIP: Blend Sorbitol with glycerin at a 60:40 ratio (Sorbitol to glycerin) in your water phase to get superior moisture retention with a significantly lighter skin feel. In melt and pour soap bases, add Sorbitol at 45% alongside sugar solution and glycerin, heating to 70°C until fully dissolved, to achieve crystal-clear bars with excellent lather.

Normal Skin : ★★★★★ — Provides balanced hydration without heaviness or residue.
Dry Skin : ★★★★☆ — Good humectant but may need pairing with occlusives for very dry skin.
Oily Skin : ★★★★★ — Lightweight, non-greasy moisture ideal for oily skin types.
Combination : ★★★★★ — Hydrates dry zones without adding shine to oily areas.
Sensitive Skin : ★★★★★ — Non-irritating and well-tolerated even by reactive skin.
Mature Skin : ★★★★☆ — Supports hydration but lacks anti-aging active properties on its own.
Acne-Prone : ★★★★☆ — Non-comedogenic humectant safe for breakout-prone skin at recommended levels.

CONCEPT 1: Lightweight Hydrating Gel Moisturizer
Usage Level : 5%
Key Ingredients: Aloe Vera Gel, Hyaluronic Acid, Carbomer, Niacinamide
Result : A water-light gel that delivers layered hydration with a completely non-sticky matte finish.

CONCEPT 2: Crystal Clear Melt and Pour Soap Base
Usage Level : 45%
Key Ingredients: Glycerin, Sodium Hydroxide, Coconut Oil, Sugar Solution
Result : A fully transparent soap base with excellent lather and smooth plasticity for easy molding.

CONCEPT 3: Gentle Daily Face Cleanser
Usage Level : 4%
Key Ingredients: Decyl Glucoside, Cocamidopropyl Betaine, Allantoin, Panthenol
Result : A mild, hydrating cleanser that leaves skin soft and moisturized without stripping natural oils.

INCI Declared : Yes — required in ingredient listing at any concentration in EU
EU Cosmetics Reg : Permitted — no specific restrictions under EU Cosmetics Regulation 1223/2009
Rinse-Off Limit : No limit established
Leave-On Limit : No limit established
Allergen Alert : No — not a known allergen
Skin Safety : Safe at recommended levels; very low irritation potential
Eye Area Use : Safe — non-irritating to the eye area at typical use levels
Ingestion : Used in food and oral care products; however cosmetic-grade is not for dietary use
Pregnancy Use : Safe — no known restrictions for topical cosmetic use
Child Safety : Safe for all ages including infant care products
Ventilation : Not required
Storage : Cool dry place; keep container tightly sealed to prevent moisture absorption
Container : HDPE or PET plastic; glass also suitable

Working pH Range : 3.0 to 9.0
Heat Stability : Stable up to 150°C; can be added to hot or cold phase
Freeze-Thaw Stable : Yes — solution may crystallize if frozen but redissolves on warming
Emulsion Type : Both O/W and W/O — functions in the water phase
Emulsification Phase: Either hot or cold phase; fully water-soluble
Compatible With : Glycerin, propylene glycol, most surfactants, gelling agents, preservatives
Incompatible With : Strong oxidizing agents; no significant incompatibilities in cosmetic systems
Oxidation Risk : Low — chemically stable sugar alcohol with no oxidation concerns
Discoloration Risk : None under normal storage and formulation conditions
Formulation Notes : Sorbitol in 70% liquid form can be added directly to the water phase at any temperature. Powder form should be dissolved in warm water before incorporation. In very high humidity environments, powder Sorbitol is hygroscopic and should be stored sealed.

Q: What is the difference between Sorbitol liquid and Sorbitol powder?
A: Sorbitol liquid is a 70% aqueous solution ready for direct use in formulations, while the powder is 100% Sorbitol that must be dissolved before use. The liquid form is more convenient for most cosmetic and soap making applications.

Q: Can I use Sorbitol instead of glycerin in my skincare products?
A: Yes, Sorbitol can replace glycerin as a humectant and provides a lighter, less sticky skin feel. However, Sorbitol has slightly lower moisture-drawing capacity than glycerin, so you may need to use a slightly higher percentage.

Q: Why is Sorbitol used in melt and pour soap bases?
A: Sorbitol acts as a plasticizer and crystallization inhibitor in soap, which is essential for achieving transparency. Without Sorbitol, sugar-based soap bases would turn cloudy and crystallize over time.

Q: At what percentage should I use Sorbitol in facial serums?
A: For facial serums, use Sorbitol at 2% to 6% in the water phase. Start at the lower end and increase based on the level of hydration and texture improvement you need.

Q: How does Sorbitol compare to propylene glycol as a humectant?
A: Both are effective humectants, but Sorbitol is preferred for sensitive skin and natural-leaning formulations because it is derived from glucose and has an excellent safety profile. Propylene glycol has stronger penetration-enhancing properties but may cause irritation in sensitive individuals.

Product evaluation

Review the specifications, supplied grade, intended use and compatibility of Sorbitol before ordering for production. Test a small quantity in the actual application and document the result before scaling.

Quality control

Inspect the received batch for expected appearance, odor, texture, packaging condition and labeling. Keep supplier and batch records, use accurate measurements, and retain a reference sample when the material is used commercially.

Storage and responsible use

Store tightly closed in a clean, cool and dry location away from direct sunlight. Follow the current supplier instructions and all safety, labeling and regulatory requirements that apply to the intended finished product.