Wellness Brand Ensures Natural Colour Stability with HunterLab Vista
A leading wellness products manufacturer—spanning nutritional, pharmaceutical, personal care, and household cleaning categories—wanted a more objective, quantitative method to measure the colour of its liquid soaps.
As the company transitioned from artificial to natural dyes, it began noticing colour changes over time that could affect consumer perception and brand consistency. The internal Quality Assurance (QA) lab needed a precise, repeatable way to track colour shifts for uniformity testing and shelf-life validation.
Curious how colour measurement can help your brand manage the transition to natural colorants?
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The Challenge: Tracking Subtle Colour Changes Over Time
Natural colorants are more environmentally friendly—but also more variable.
Without advanced instrumentation, it was difficult to:
- Detect gradual colour degradation during storage.
- Ensure uniform colour across production batches.
- Establish objective quality standards as dyes naturally oxidized or settled.
- Quantify shelf-life stability, since visual checks were subjective and inconsistent.
The QA team needed a scientific, repeatable approach that could accurately monitor colour change over time in a translucent liquid matrix.
The HunterLab Solution: Vista Spectrophotometer
HunterLab recommended the Vista Spectrophotometer — designed for transparent and semi-transparent liquids, providing simultaneous colour and haze measurement.
Using 10 mm cuvettes/cells and optional sealed caps, the customer could easily store retains and perform periodic re-measurement to monitor colour degradation over time.
During a virtual demo, HunterLab’s application specialists demonstrated:
- How to properly fill the cells to avoid air entrapment; allowing 5–10 minutes for bubbles to dissipate before measurement.
- How to use EZ View with Colour Plot, enabling instant visualization of where each soap sample resides in colour space relative to its target.
- Best practices for consistent sample presentation, ensuring repeatable results across days or batches.
The Vista’s compact benchtop design and touchscreen interface allowed the QA team to perform tests quickly, visualize trends immediately, and establish measurable internal colour standards.
Outcomes: Objective Colour Control, Natural Dye Confidence
By integrating HunterLab Vista into their QA process, the wellness manufacturer achieved:
- Accurate, repeatable colour measurements for natural-dye formulations.
- Objective tracking of colour changes during storage and aging.
- Faster quality assurance with real-time colour visualization in EZ View.
- Reduced waste and rework by identifying instability early.
- Increased confidence in natural colour uniformity, strengthening sustainability goals and consumer trust.
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Why HunterLab
For over 70 years, HunterLab has empowered manufacturers worldwide to quantify what the human eye sees—ensuring precision, consistency, and confidence in colour-critical industries.
The Vista Spectrophotometer combines simultaneous colour and haze measurement, smart cuvette-based workflows, and EasyMatch® QC compatibility—making it the ideal choice for QA teams transitioning to natural, clean-label formulations.
Contact Us to learn how HunterLab Vista ensures colour integrity in wellness and personal care applications.
