Clinical evaluation of over-the-counter cold sore treatments, including creams, gels, and ointments, assessing product performance and visible recovery outcomes.
Cold Sore Product Testing
What you can expect:
Cold sore product testing is designed to evaluate the performance and efficacy of topical treatments intended to support the management and visible recovery of cold sores.
These studies typically assess products such as creams, gels, ointments, and other topical formulations marketed for cold sore care.
All testing is conducted on cosmetic, toiletry, or over-the-counter personal care products only, and is not intended to assess prescription medicines or medical treatments.
Study Design
Cold sore clinical trials are conducted using controlled evaluation of naturally occurring or clinically identified cold sore episodes.
Study design is tailored depending on product type and intended claims, with a focus on the visible progression and resolution of lesions over time.
Participants are monitored throughout the outbreak cycle, from early onset through to healing, depending on study protocol.
Assessment Methods
PCR uses trained clinical assessors to evaluate cold sore progression using a combination of qualitative and quantitative methods, including:
- Clinical grading of lesion severity and progression
- Standardised photographic documentation of affected areas
- Assessment of healing time and visible recovery stages
- Expert scoring of redness, crusting, and lesion resolution
- Participant-reported symptom diaries (where applicable)
These methods allow structured tracking of product performance over the course of an outbreak.
What the Data Measures
Cold sore studies focus on the rate and quality of visible healing, including:
- Reduction in lesion severity over time
- Progression through standard healing stages
- Improvement in skin appearance (redness, swelling, crusting)
- Overall recovery timeline compared to baseline or control conditions
What the Data Supports
Results from cold sore testing can be used to support claims such as:
- Supports healing of cold sore lesions
- Reduces the visible duration of outbreaks
- Helps improve skin appearance during recovery
- Provides symptomatic relief claims (cosmetic/OTC positioning only)