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Small Molecule Delivery - our offering

High purity excipients for small molecule delivery

Croda Pharma offers high purity, multi-compendial, pharmaceutical excipients for small molecule drug delivery.

Our portfolio of high purity excipient products and speciality chemistries solve formulation challenges and enhance drug delivery across a variety of administration routes and dosage forms. 

Customer focused service

At Croda Pharma we believe in an approachable way of working – providing you with direct access to our technical teams and customer support. Enabling faster communication and collaboration with ease, as well as supporting the development of innovative formulations. Our analytical capabilities support formulation development and improve formulation performance, allowing you to optimise your drug delivery system.

We aim to grow and outperform in the market sectors we serve through staying attentive to our customer’s needs and using our technical and manufacturing expertise.

Croda Pharma, your partner for Small Molecule Delivery 

We are market leaders as the exclusive supplier of Super Refined™ excipients, specifically developed to optimise API stability and improve the performance of your  pharmaceutical formulations, aiding in the manufacture of: 

  • Small molecule parenterals 
  • Topicals
  • Opthalmic and inhalation.

Discover our Super Refined™ excipient range

Formulation challenges are not uncommon in pharmaceutical formulation, frequent challenges include the use of highly unstable APIs and excipient-drug interaction. 

Our Croda experts have designed our Super Refined™ excipients to combat formulation challenges and to provide additional value to your final drug product. Our range of emulsifiers, permeation enhancers, emollients and solvents enhance stability and have a variety of formulation benefits including:

  • Minimised API degradation
  • Reduced impurity profiles for improved drug compatibility
  • Reduced oxidation potential for increased drug stability
  • Batch-to-batch consistency.

Together these benefits can add value to your final drug product through optimised drug efficacy, increased shelf life, decreased time to market, and increased patient comfort. Get in touch with one of our technical experts today to discuss your formulation needs and discover how our                 
Super Refined ™ range can benefit you.


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Super Refined™ pharmaceutical excipients

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Pharmaceutical excipients for opthalmic formulations

pharmaceutical excipients for opthalmic formulations brochure
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Super Refined™ excipients for parenteral drug delivery

Super refined excipients for parenteral drug delivery brochure
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Product finder

Super Refined™ Excipients

Super Refined™ excipients

Super Refined excipients are stripped of a number of oxidative impurities, such as peroxides, aldehydes, and catalyst residues. The removal of these problematic species helps to reduce negative API & excipient interactions, maintaining both the stability of the drug and the final formulation. In addition, the removal of these impurities can minimise cellular irritation, reduce taste impact, and potentially decrease allergenicity. 

We have a large variety of products, ranging from various polysorbates, polyethylene glycols (PEG), esters, vegetable oils, and more. 

Explore Super Refined™ excipients

Add significant value to your drug formulations today with our Super Refined™ range offering:

icon graphic for api degradation

Minimised API degradation


Reduced oxidation potential

Reduced impurities

Reduced impurities and allergic potential

View some of our Super Refined™ Range:

Super Refined™ PEG 400

Super Refined™ PEG 400

The Super Refined PEG range is a series of Super Refined polyethylene glycols, offering pharmaceutical formulators highly purified hydrophilic excipients that can enhance active and formulation...

Super Refined™ PEG 300

Super Refined™ PEG 300

The Super Refined PEG range is a series of Super Refined polyethylene glycols, offering pharmaceutical formulators highly purified hydrophilic excipients that can enhance active and formulation...

Super Refined™  Polysorbate 80

Super Refined™ Polysorbate 80

Super Refined Polysorbates solubilise and stabilise the most sensitive active ingredients across dosage forms including injectable and oral. Super Refining removes impurities (including primary and...

Super Refined™  Polysorbate 20

Super Refined™ Polysorbate 20

Super Refining removes impurities, preventing adverse interactions with APIs and enhancing the stability of pharmaceutical formulations. Super Refined Polysorbates offer the complete solution when...

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