V.DOING RESEARCH NOTES
What was measured, and what it means
Two separate human-use assessments measured changes after use of the V.DOING Hydra Collagen Ampoule. The results below describe the tested ampoule under each study's conditions. They are not results for the complete 3-Step Set or a comparison with another brand.
+33.99%
Skin hydration density
Mean within-person change from baseline after two weeks of ampoule use in 22 participants.
+39.28%
Skin gloss index
Mean within-person change in the same two-week, 22-participant ampoule assessment.
−35.38%
Crow's-feet wrinkle count
Mean within-person change in the assessed area after 28 days of ampoule use in a separate 33-participant assessment.
How the studies were run
Hydration and gloss: KDRI report KDRI-2026-0030. Twenty-two Korean women applied the tested ampoule to the face twice daily on three days each week for two weeks. Researchers used an Epsilon E100 instrument for skin hydration density and a gloss meter for skin gloss. The percentages are the average of each participant's percentage change from their own baseline.
View the one-page KDRI result summary (PDF). This brand-created summary is based on a draft KDRI source document; it is not the original issued report.
Crow's-feet count: SGS report XMCPCH26000262-01_CN. Thirty-three Chinese women used the tested ampoule three times per week for 28 days. Image analysis assessed the number of crow's-feet wrinkles in the measured area. The percentage refers to wrinkle count, not depth or a whole-face result.
Questions we want every customer to be able to answer
Was the full set tested as one product?
No. These human-use results are for the Hydra Collagen Ampoule. The set also contains masks, cream and rollers; its combined effect was not measured in these studies.
Do these numbers compare V.DOING with another brand?
No. Both were before-and-after assessments of the tested ampoule, with no competitor arm.
Should I follow the study schedules as my product directions?
No. Those schedules describe how the assessments were run. Follow the directions and precautions supplied with your product. Results vary from person to person.
Report identifiers and study conditions are provided to make the claims checkable. For questions about these results or the product, contact v.doing.kr@gmail.com.