L-Mandelic Acid

L-Mandelic Acid Premium Cosmetic Grade – High-Purity Optical Active Skincare Ingredient Solution

Xi'an Le-Nutra Ingredients Inc. is a professional manufacturer of L-Mandelic Acid with purity ≥99% and optical rotation +155°~+158°. With 60,000㎡ of floor space, our GMP-certified production plant produces 3,000 tonnes per year assuring consistent supply to major cosmetic manufacturers. With more than 14 years experience in natural active ingredients we deliver optically pure L-isomer (much superior biological activity compared to racemic DL-type) perfect for high end anti-aging, exfoliation and skin brightening formulations.

What Is L-Mandelic Acid?

The product (known chemically as (S)-2-hydroxy-2-phenylacetic acid) is an aromatic alpha hydroxy acid (AHA) with distinctive lipophilic characteristics. It’s a bigger molecule than other smaller AHAs like glycollic acid, so it penetrates the skin more slowly and gently. This makes it especially ideal for delicate and darker skin tones.

The biologically active and naturally occurring form is the L-isomer. It shows better affinity to skin and predictable exfoliating behaviour. This degree of optical purity is essential for professional cosmeceutical applications, where efficacy and safety are paramount.

Technical Specifications

Core Benefits for Cosmetic Formulations

Gentle & Effective Exfoliation

The substance provides strong, yet non-irritating exfoliation. Its molecular size is greater and hence it penetrates more slowly and is less likely to cause inflammation. This is an extremely attractive characteristic for firms who are targeting consumers with reactive or melanin-rich skin.

Multi-Functional Anti-Aging Action

It encourages cellular turnover, refines skin texture, and minimises fine wrinkles. Surface renewal speeds up to help reveal fresher, smoother skin. Formulators like that it can exfoliate and rejuvenate, all in one ingredient.

Skin Brightening and Post-Acne Mark Fading

visible reduction of hyperpigmentation and post-inflammatory signs with regular use It disrupts pathways for melanin formation and speeds up the shedding of pigmented cells. Which makes it an essential active in brightening serums and tailored therapy treatments.

Natural Antibacterial Properties

In addition to exfoliating, it has antibacterial effects that help manage acne-causing germs. It's a natural action that cleanses the skin without harsh synthetic ingredients. It is often used in formulation of cosmetics for acne care and blemish management.

Professional Applications in the Cosmetic Industry

High-End Functional Skincare

In professional medical peels, concentrations of 30–50% are used for clinical-grade treatments of hyperpigmentation in Fitzpatrick skin types IV–VI. These regimens help to minimise the danger of post-inflammatory hyperpigmentation, which is a frequent problem with more aggressive AHAs.

Cosmeceuticals for Acne

Used at 5-10% in serums it helps oily, blemish prone skin by preventing follicular blockage and microbial overgrowth. It is lipophilic therefore it penetrates more effectively into pores packed with sebum than water-soluble acids.

Stable pH Emulsions Systems

It is stable and effective even in complex low pH emulsion systems (pH 3.0-4.0). This uniformity is critical for dermatologist approved products because efficacy must be assured with batch production.

Quality Assurance and Compliance

We manufacture L-Mandelic Acid in a GMP and ISO registered plant. All batches undergo stringent testing including HPLC purity analysis, optical rotation testing, heavy metals screening and microbiological limit testing. For every shipment, we supply a lot of documentation: COA, TDS, optical rotation test reports, and certifications like Halal, Kosher, Non-GMO, and Allergen-Free.

Full traceability assures that every kilogram fulfils worldwide medicinal and cosmetic standards. We do support third party testing and can develop custom compliance packages for different geographical markets.

Storage and Handling Recommendations

Store in a cold, dry and dark place in a tightly closed container to preserve optical purity and activity. Do not expose to high temperature and humidity as it may change the optical rotation and diminish efficacy. Reseal containers with nitrogen filling after opening to prevent oxidation and inactivation. Proper storage maintains constant performance throughout the 24 month shelf life.

OEM/ODM Custom Solutions

Full customisation to your brand. Our R&D team works closely with you to provide precise purity grades, unique packaging sizes, private labelling, or formula development support. We simplify your production process and accelerate time to market, from design to delivery.

We provide flexible MOQ options and safety stock procedures to guarantee constant supply for both small trial batches and large-scale commercial orders.

Global Supply and Delivery

With more than 30 days of safety stock and proven logistical agreements, we have a 98% on-time delivery rate around the globe. We can provide various delivery terms such as EXW, FOB, CFR, CIF, DAP and DDP. We accept T/T, Western Union, PayPal and Alibaba Assurance Account for your convenience.

Global distribution network including North America, Europe, Southeast Asia and growing countries with 24/7 language customer service teams

FAQ

Q: How does this product compare to DL-Mandelic Acid?

A: The L-isomer is the physiologically active form in nature. It has better skin affinity and more predictable exfoliation than synthetic racemic mixtures.

Q: Does the product cause photosensitivity?

A: All AHAs increase photosensitivity, but this ingredient's bigger molecule prevents deep dermis damage. But you still have to wear SPF every day.

Q: What is the best pH for stability?

A: Formulations are most effective and stable around pH 3.4 to 4.0. pH values much higher will neutralise the acid and diminish efficacy.

Q: Is the product soluble in oil?

A: It is more lipophilic than glycollic acid, but technically sparingly soluble in water and quite soluble in polar organic solvents such as ethanol and propanediol.

Q: How to store a product in bulk?

A: To avoid decarboxylation and moisture absorption that contribute to clumping, it should be stored in an airtight container in a cool, dry, dark place.

Partner with a Trusted Manufacturer

Ready to elevate your product line with premium L-Mandelic Acid? Contact our team at enquiry@lenutra.com for samples, technical support, or customized quotations today.