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High purity excipients for ophthalmic drug delivery

Our high purity excipients provide solutions to the most frequently encountered challenges facing the ophthalmic formulator, including the solubilisation of active ingredients and improving the stabilisation of the finished formulation.

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Super Refined™ excipients for ophthalmic drug delivery

The eye naturally provides a complex delivery route for drug actives, as it is necessary to circumvent its protective barriers without causing damage to the sensitive eye tissues. Developing an ophthalmic drug product requires focus on key factors, such as drug stabilisation, irritation minimisation and meeting low endotoxin level requirements. These factors can impact final formulation success. High purity excipients can maximise the success rate of drug development by offering enhanced API stability, reduced cellular irritation and minimised endotoxin contribution to the final formulation. 

High purity excipients for ophthalmic drug delivery

Our proprietary Super Refining process yields highly purified excipients that can maximise drug product value and are indicated to stabilise, solubilise and optimise the active ingredients in the formulation.

Reduced peroxide values

Our Super Refining process removes potentially hazardous species such as peroxides and carbonyls. Our high purity and Super Refined excipients provide increased API stability, reduced cellular irritation and improved patient compliance due to their low impurity profiles.

Reduced cellular irritation

Formaldehyde is a known cellular irritant, with high levels of formaldehyde being indicative of greater cellular irritation. Our Super Refined Polysorbate 20 has lower formaldehyde levels compared to its standard compendial grade counterpart, lowering the potential of cellular irritation and improving patient comfort. 

Reduced endotoxin levels

With strict guidelines for endotoxin testing on the final drug product, there is a need to formulate with ingredients that have minimal contribution to the total endotoxin level. The Super Refining process yields a reduction in the endotoxin units (EU/ml) of the high purity excipients within this product range, helping you formulate with confidence.

Ophthalmic drug value:

  • Optimised drug performance
  • Increased patient compliance
  • Decreased formulation development time
  • Increased speed to market.

Benefits and features of our products for ophthalmic drug delivery:

  • LAL testing on each batch
  • Low peroxide levels
  • Low moisture
  • Multi-compendial - USP/NF, Ph. Eur., JPE/JP and ChP.

Pharmaceutical excipients for ophthalmic formulations

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Super Refined™ pharmaceutical excipients

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Small Molecule Delivery

We offer 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.

Formulation benefits for ophthalmic drug delivery:

Reduced cellular irritation

Reduced endotoxin levels

Reduced peroxide levels

Explore our product offering

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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. 
Vitaminas y suplementos

Oral drug delivery


Parenteral drug delivery

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Topical drug delivery


Transdermal drug delivery