Menthol Crystals 50 g

Cooling & Refreshing Ingredient for Soap, Hair Care and Cosmetic Formulations

Menthol Crystals are a concentrated aromatic cosmetic ingredient valued for their distinctive minty aroma and intense cooling sensation.

Menthol activates cold-sensitive sensory receptors on the skin, creating a perception of cooling even without physically lowering skin temperature.

It is commonly used in:

• Handmade soaps
• Shower gels
• Body washes
• Shampoos
• Scalp-care products
• Cooling creams
• Body-care gels
• Foot-care products
• Massage cosmetics
• Balms
• Selected oral-care products

Because Menthol is highly potent, only small amounts are generally required.

What Is Menthol?

Menthol is an aromatic alcohol naturally present in mint oils.

INCI Name: Menthol
Chemical Formula: C10H20O
Common Form: White or Colorless Crystals
Primary Cosmetic Functions: Refreshing / Fragrance / Sensory Cooling

Different menthol grades may be produced naturally from mint or manufactured synthetically.

If the supplied material is specifically derived from Mentha arvensis or another botanical source, this claim should be supported by supplier documentation.

Natural Menthol Crystals

Natural L-Menthol is commonly obtained from mint oils, especially oils associated with species such as:

Mentha arvensis

However, not every commercial Menthol product is naturally derived.

Therefore, use statements such as:

Natural Menthol Crystals

or

Mentha arvensis-derived Menthol

only when confirmed by the COA or supplier specification.

Cooling Sensation

Menthol is best known for its powerful cooling sensory effect.

It can provide:

• Freshness
• Cooling sensation
• Clean sensory character
• Minty aroma
• Refreshing after-feel

The cooling effect becomes stronger as the concentration increases.

For this reason, dosage must be carefully controlled.

Does Menthol Actually Cool the Skin?

Menthol mainly changes the perception of temperature through sensory receptors.

It creates a cooling sensation without necessarily causing a significant physical reduction in skin temperature.

This makes it valuable for products marketed around:

• Freshness
• Cooling
• Revitalizing sensory effects
• Post-exercise cosmetic care
• Foot-care products

Use in Soap Making

Menthol Crystals can be used in handmade soap to provide a refreshing cooling sensation and characteristic mint aroma.

Suitable applications may include:

• Mint soaps
• Summer soaps
• Foot-care soaps
• Sports-themed soaps
• Refreshing shower bars

Because Menthol is concentrated, begin with a low amount.

Use in Cold Process Soap

Menthol Crystals should generally be dissolved before incorporation.

A practical method is:

1. Weigh the required Menthol accurately.
2. Dissolve it in a small amount of compatible fragrance material or liquid oil.
3. Prepare the soap normally.
4. Add the Menthol mixture at a later mixing stage.
5. Mix thoroughly for uniform distribution.
6. Pour into the mold.

Avoid unnecessarily high processing temperatures.

Menthol and Soap Temperature

Menthol is volatile and aromatic.

Excessive heating can increase:

• Odor loss
• Evaporation
• Processing losses

For this reason, unnecessary prolonged heating should be avoided.

Use in Melt & Pour Soap

Menthol may also be added to compatible melt and pour bases.

A typical approach is:

1. Melt the soap base gently.
2. Dissolve the Menthol separately in a compatible medium.
3. Allow the base to cool slightly.
4. Add the Menthol mixture.
5. Stir thoroughly.
6. Pour into molds.

Too much Menthol can make the soap uncomfortably intense on skin.

Typical Usage Level in Soap

A conservative formulation starting range may be approximately:

0.1–0.5%

depending on:

• Desired cooling intensity
• Product type
• Fragrance system
• Area of application
• Supplier specification

Higher concentrations should only be considered after appropriate safety assessment.

Use in Shampoo

Menthol is commonly used in refreshing shampoo concepts.

It can provide:

• Cooling scalp sensation
• Fresh sensory profile
• Minty fragrance character

It does not itself clean hair or treat scalp disorders.

The cleansing effect comes from the surfactant system.

Shampoo Usage

A common experimental starting range may be approximately:

0.05–0.5%

depending on the desired cooling effect.

Strong concentrations can cause excessive tingling or discomfort.

Use in Shower Gels & Body Washes

Menthol can be incorporated into:

• Shower gels
• Body washes
• Cooling cleansers
• Sports shower products

to produce a fresh and cooling after-feel.

Because Menthol is poorly soluble in water, the formulation requires an appropriate solubilization system.

Use in Creams & Lotions

Menthol can also be used in selected:

• Cooling creams
• Foot creams
• Body lotions
• Cooling gels
• After-sport cosmetic products

Its role should be described as providing a cooling and refreshing sensory effect, rather than treating muscle pain or inflammation.

Sports & Massage Products

Menthol is frequently used in cosmetic massage products because of its cooling sensory effect.

Appropriate cosmetic claims include:

• Cooling massage sensation
• Refreshing after-feel
• Ideal for post-exercise cosmetic care

Avoid claims such as:

• Relieves muscle pain
• Treats inflammation
• Relaxes muscles
• Heals sports injuries

unless the finished product has the appropriate regulatory classification.

Use in Foot-Care Products

Menthol is especially suitable for:

• Foot gels
• Foot creams
• Foot sprays
• Cooling foot cleansers

where a strong fresh and cooling sensation is often desirable.

Oral-Care Products

Menthol may be used as a flavoring and refreshing ingredient in products such as:

• Toothpaste
• Mouthwash
• Oral-care gels

However, the raw material must be specifically suitable for oral-care applications.

A cosmetic-grade Menthol product should not automatically be assumed suitable for ingestion or oral use.

Menthol Is Not an Antibacterial Preservative

Menthol should not be marketed as the antimicrobial preservation system of a cosmetic formulation.

It does not replace a validated preservative system in water-containing products.

Products such as:

• Shampoo
• Shower gel
• Lotion
• Cream

may still require an appropriate cosmetic preservative.

Menthol Is Not a Decongestant Claim for Cosmetics

Menthol’s strong aroma and cooling sensation are often associated with a feeling of freshness.

However, cosmetic product descriptions should avoid claims such as:

• Opens the airways
• Treats congestion
• Improves breathing
• Treats colds

because these may be interpreted as medicinal claims.

Solubility

Menthol is only slightly soluble in water.

It is much more compatible with materials such as:

• Ethanol
• Certain cosmetic oils
• Essential oils
• Fragrance systems
• Suitable cosmetic solvents

It should not be described as freely soluble in hot water.

Dissolving Menthol Crystals

Menthol Crystals can be dissolved by:

• Gently warming them
• Mixing with a compatible oil
• Dissolving in ethanol where appropriate
• Incorporating into a suitable fragrance or solvent system

Do not overheat unnecessarily.

Melting Behavior

Depending on isomer and grade, Menthol typically melts around approximately:

38–43°C

Natural L-Menthol commonly melts around:

41–43°C

This means the crystals can be liquefied with gentle warming.

Crystallization

Menthol may recrystallize when:

• Concentration is too high
• Temperature drops
• Solvent capacity is insufficient
• Formula compatibility is poor

Small crystals appearing in the finished product can indicate inadequate solubilization.

Always conduct stability testing.

Typical Cosmetic Usage Levels

There is no single universal Menthol percentage for every cosmetic.

Practical starting ranges may include:

Soap

0.1–0.5%

Shampoo

0.05–0.5%

Shower Gel

0.05–0.5%

Creams & Cooling Gels

0.05–0.5%

Foot-Care Products

Approximately 0.1–1%, depending on the intended sensory intensity

These are formulation starting points, not automatic legal limits.

Always evaluate:

• Product type
• Application area
• Rinse-off vs. leave-on use
• Target consumer
• Supplier documentation
• Finished-product safety

Avoid Excessive Menthol

Too much Menthol can cause:

• Strong burning sensation
• Excessive cooling
• Eye irritation
• Skin discomfort
• Sensory irritation

More Menthol does not necessarily produce a better cosmetic product.

Sensitive Areas

Use additional caution in products intended for:

• Face
• Eye area
• Lips
• Intimate areas
• Damaged skin

Menthol should not come into direct contact with the eyes or mucous membranes.

Products for Babies & Young Children

Menthol should not automatically be used in baby or young-child products simply because it is naturally derived.

Products intended for infants or young children require a dedicated safety assessment appropriate to:

• Age
• Concentration
• Application area
• Exposure route

Fragrance Allergen Labeling in the EU

Menthol is included in the EU fragrance-allergen labeling framework.

Where applicable under EU cosmetic regulations, Menthol must be individually declared in the ingredient list when present above the applicable threshold.

Professional manufacturers should verify current labeling requirements for:

• Leave-on products
• Rinse-off products
• Target-market implementation dates

before commercial sale.

Natural Does Not Mean Irritation-Free

Even naturally derived Menthol is a potent sensory ingredient.

“Natural” does not automatically mean:

• Non-irritating
• Hypoallergenic
• Suitable for every skin type
• Suitable for babies

The finished product must be evaluated as a complete formulation.

Product Details

Product Name: Menthol Crystals
INCI Name: Menthol
Chemical Formula: C10H20O
Weight: 50 g
Form: Crystals
Appearance: White to Colorless Crystalline Material
Odor: Strong Characteristic Minty Odor
Primary Functions: Cooling / Refreshing / Fragrance
Water Solubility: Slightly Soluble
Applications: Soap, Shampoo, Body Wash, Cooling Creams, Foot Care and Selected Cosmetic Formulations

Purity

Only state:

100% Pure Menthol

if supported by the actual supplier COA.

The documentation should ideally specify:

• Menthol isomer
• Purity
• Botanical or synthetic origin
• Melting range
• Optical rotation where applicable
• SDS
• TDS
• COA

Safety Information

Menthol is a highly concentrated raw material.

During handling:

• Avoid direct eye contact.
• Avoid contact with mucous membranes.
• Avoid applying concentrated Menthol directly to skin.
• Avoid inhaling concentrated vapors or dust.
• Wear suitable gloves during professional handling.
• Work in a ventilated area.
• Keep out of reach of children.
• Follow the supplier SDS.

Direct Skin Application

Pure Menthol Crystals should not be rubbed directly onto the skin.

They should first be incorporated into an appropriately diluted and professionally formulated product.

Storage

Store Menthol Crystals:

• In tightly closed packaging
• In a cool and dry place
• Away from direct sunlight
• Away from excessive heat
• Protected from moisture
• Away from strong oxidizing materials

Because Menthol is volatile and strongly aromatic, keep the container tightly sealed.

Wholesale, Private Label & Contract Manufacturing

We also supply Menthol Crystals, essential oils, fragrances, cooling ingredients and other cosmetic raw materials in wholesale quantities for soap makers, cosmetic brands, laboratories, retailers and professional manufacturers.

In addition to raw material supply, we provide private label and contract manufacturing services for cooling soaps, shampoos, shower gels, foot-care products, body gels and other customized personal-care formulations.

Custom products can be developed with different cooling intensities, fragrances, botanical ingredients, surfactant systems, colors, textures, packaging formats and private label designs.

For bulk Menthol Crystal orders, private label products or contract manufacturing, please contact us with your required quantity, product concept, intended application, packaging requirements, target market and estimated production volume.