Where the Cells Were Actually Dying: How a Probiotic Strain Supplier Used Bespoke Research and Consulting to Explain a Gap Between Lab Results and Shelf Performance
Executive Snapshot
Client
Situation/Challenge
Objective
Constancy Researchers Solution
Impact
Client Outcome
The Situation / Challenge
A probiotic viability claim depends on much more than the strain’s own inherent stability. The way a customer brand processes the strain into a finished product, and the storage and distribution conditions that follow, can each strip away a meaningful share of viable cells before the consumer ever opens the package. A strain that sails through a supplier’s own lab testing can still fall short once it enters a customer’s actual production environment.
The client had been fielding complaints from several brand customers reporting finished products testing under label viability near the end of shelf life. Its own lab work consistently confirmed specification was met at the point of shipment, which pushed internal teams toward suspecting the customers’ manufacturing or storage as the culprit. That suspicion strained relationships with affected accounts, who reasonably wanted proof rather than a shrug of responsibility.
Without hard evidence pointing to exactly where in the chain viability was disappearing, the standoff threatened to permanently erode trust with major accounts, regardless of which side actually bore responsibility.
Key Challenges
- No bespoke testing reproducing the actual manufacturing and storage conditions used by the specific customer accounts reporting shortfalls.
- No consulting-led trace identifying exactly where in the supply chain, manufacturing, storage, or distribution, viability was being lost.
- Customer relationships under strain from an unresolved dispute, with neither side holding concrete evidence.
- A real risk that prolonged ambiguity would damage trust permanently no matter who was eventually proven right.
- No ready formulation alternative even once the cause of the viability loss was identified.
- Pressure from commercial leadership to settle the dispute with evidence before it affected upcoming contract renewals.
Disputes over probiotic viability rarely get resolved by either party’s own lab data alone, since each side’s testing only reflects its own stage of the chain. Bespoke testing that recreates the customer’s actual manufacturing and storage conditions is usually the only reliable way to find exactly where the cells are dying.
Constancy Researchers Solution
Constancy Researchers built bespoke stability trials specifically designed to mirror the manufacturing and storage conditions of the client’s affected accounts, then applied consulting expertise to trace exactly where viability was breaking down.
Bespoke Stability Testing Under Customer-Specific Manufacturing Conditions
- Designed and ran bespoke stability tests reproducing the specific manufacturing processes used by the client’s two largest affected accounts, including their processing temperatures, mixing steps, and packaging methods.
- Found that viability collapsed predominantly during a shared high-heat processing step common to both accounts, not during storage or distribution as the client had assumed.
Supply Chain Diagnostic & Root Cause Consulting
- Applied consulting methods to trace the viability loss back to that specific processing step, confirming the mechanism by which heat exposure was wiping out viable cells before the product even reached storage.
- Established that the affected customers’ processing temperatures exceeded the threshold the client’s existing formulation could reliably withstand, a parameter standard lab specification testing never captured.
Formulation Adjustment Assessment
- Evaluated available formulation and encapsulation options capable of protecting viability through higher processing temperatures, weighing each on cost, implementation timeline, and fit with existing customer equipment.
- Landed on a heat-tolerant encapsulation tweak that could be deployed without requiring affected customers to change their existing processing lines.
Customer Resolution & Implementation Plan
- Delivered a consulting-backed resolution package giving affected customers concrete evidence of the root cause, alongside a specific formulation fix and rollout timeline.
- Coordinated a phased transition schedule with both affected accounts to switch to the heat-tolerant variant without disrupting their existing production calendars.
Ongoing Quality Monitoring Framework
- Established a quarterly viability re-testing protocol specifically calibrated to each customer’s actual processing conditions, replacing reliance on generic shelf-life specification testing alone.
- Built an early-warning checklist flagging any future customer processing change likely to push temperatures back above the threshold the strain’s formulation could reliably withstand.
The work gave the client something its own lab data alone never could, definitive proof of where viability was actually being lost, plus a specific fix to bring directly to its affected customers.
Impact
- Bespoke testing identified high-heat processing, not storage, as the real cause of viability loss.
- The root cause traced to a specific processing temperature threshold absent from standard specification testing.
- A heat-tolerant encapsulation tweak emerged as a viable fix compatible with existing customer equipment.
- The client brought concrete evidence and a specific fix to its two largest affected accounts.
- The responsibility dispute was settled with evidence rather than continued mutual suspicion.
- A heat-tolerant strain variant launched for customers running high-heat processing.
- End-of-shelf-life viability returned to within label claims for both affected accounts.
- Contract renewal talks with both accounts proceeded without the unresolved viability dispute hanging over them.
Client Outcome
Root Cause Identified
High-heat processing was confirmed as the real cause of viability loss, replacing unsupported assumptions about customer storage.
Customer Disputes Resolved
Both affected accounts received concrete evidence and a specific fix, settling a relationship-straining dispute.
Viability Restored
End-of-shelf-life viability returned to within label claims after the heat-tolerant variant launched.
Product Innovation
A heat-tolerant encapsulation tweak broadened the client's offering to customers running high-heat manufacturing.
Relationship Preservation
Contract renewal talks proceeded without the viability dispute as an unresolved sticking point.
Testing Capability
The client gained a bespoke testing method for replicating customer-specific conditions in future viability investigations.
Specification Improvement
Processing temperature thresholds are now documented alongside standard viability specs for future customer onboarding.
Reputation Protection
The client avoided lasting reputational damage from an unresolved dispute with two major accounts.
Market Positioning
The client was repositioned as a strain supplier able to diagnose real-world viability issues rather than deflect responsibility without proof.
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