A One-Day Evaluation of LipSense® Cream
SeneGence International, Inc. · Independent Clinical Substantiation
§ Synopsis
In a 1-day study of 32 women, Essex evaluated LipSense Cream under the source name LipSense Hydra Matte Lip Color. Mean appearance scores remained in the study's "good appearance" category at 4 hours: 3.2 by trained-technician assessment and 3.4 by participant assessment on a 0-to-4 scale.
The transfer assessment produced a mean transference score of 0.4 after rubbing, near the scale's "no evidence" category, although slight transference was observed. After 30 seconds of water exposure, all technician and subject mean appearance scores remained unchanged at 4.0 for both lips and forearm.
Technician / subject means; both in the "good" category.
Mean after rubbing on a white towel; scale range 0-9.
All lip and forearm means remained "excellent."
1 Objectives & Methods
1.1 Objectives
To determine the long-wear potential of the lip color at 4, 6 and 8 hours after application, and to evaluate its transfer-proof and water-proof potential under the study protocols.
1.2 Test article
- LipSense Cream, identified in the source report as LipSense Hydra Matte Lip Color
- Physical description: mauve cream
1.3 Use & assessments
- Applied to clean, dry lips and allowed to dry without pressing lips together
- Lip appearance scored by a trained technician and each subject on a 0-to-4 scale
- Transfer assessed by rubbing a white towel over a forearm test site
- Water exposure assessed on lips and a forearm test site for approximately 30 seconds
1.4 Claim criteria & analysis
The report used descriptive mean scores and prespecified category thresholds; it did not present statistical hypothesis testing. No control or comparator, randomization or blinding was reported. A long-wear or water-proof claim was considered supported when the applicable mean was in or near the "good appearance" category or above (2.5-4.0). A transfer-proof claim was considered supported when the mean was in or near the "slight transference" category (0-3).
Appearance scale: 4 = excellent; 3 = good; 2 = fair; 1 = poor; 0 = no product visible. Transfer scale: 0 = no evidence; 1-3 = slight; 4-6 = moderate; 7-9 = severe transference.
2 Results - Long-wear Evaluation
Mean appearance scores on lips; higher score = better visible product appearance.
| Timepoint | Technician mean | Subject mean | Study category |
|---|---|---|---|
| Baseline | 4.0 | 4.0 | Excellent |
| 4 hours | 3.2 | 3.4 | Good |
| 6 hours | 1.9 | 2.3 | Fair / near fair |
| 8 hours | 0.8 | 1.0 | Poor / near poor |
3 Results - Transfer & Water Exposure
3.1 Transfer evaluation
Approximately 5 minutes after application to a 2 cm by 2 cm forearm test site, a technician gently rubbed the site with a white towel and scored product transference.
| Assessment | Mean score | Scale | Source-report observation |
|---|---|---|---|
| After rubbing | 0.4 | 0-9 | Slight transfer; mean near 0 |
Individual scores: 18 subjects scored 0 and 14 scored 1; no score exceeded 1. The source report concluded that the claim "transfer-proof" was supported under this forearm protocol.
3.2 Brief water-exposure evaluation
Five minutes after application, lips were splashed with water and forearms were submerged in 27 degrees C water, each for approximately 30 seconds.
| Test site | Assessor | Baseline | After water | Change |
|---|---|---|---|---|
| Lips | Technician | 4.0 | 4.0 | 0.0 |
| Lips | Subjects | 4.0 | 4.0 | 0.0 |
| Forearm | Technician | 4.0 | 4.0 | 0.0 |
| Forearm | Subjects | 4.0 | 4.0 | 0.0 |
Every mean remained in the "excellent appearance" category. The source report concluded that a "water-proof" claim was supported under these protocols.
4 Conclusion
Under the conditions of this 32-subject study, LipSense® Cream met the report's criterion for a 4-hour long-wear claim. The forearm assessment showed low transfer after rubbing, and appearance scores were unchanged after 30 seconds of water exposure on lips and forearm. In the signed source report, Essex Testing Clinic concluded that 4-hour long-wear, "transfer-proof," and "water-proof" claims were supported under those specified procedures.
Essex Testing Clinic, Inc.
Essex Testing Clinic, Inc.