Radiance Ampoule Clinical Results | What the Independent 4-Week Study Found
Pure Tone Journal · Clinical Evidence
Radiance Ampoule Clinical Results: What the Independent 4-Week Study Found
Radiance Ampoule is designed as a versatile daily serum. But what happened when the formula was put through independent testing?
A four-week clinical study assessed changes in hydration, elasticity, wrinkles, radiance, pore appearance, texture and other measures of visible skin quality. Here we look at the results and what they mean in practice.
The short version
Did Radiance Ampoule Show Measurable Results?
Yes. Independent testing recorded statistically significant changes across multiple measures of visible skin quality during the four-week study.
Twenty-two participants completed the study, with the serum assessed across measures including hydration, elasticity, wrinkle depth, radiance, pore appearance, skin texture and density.
The findings support the current positioning of Radiance Ampoule as a multi-benefit daily serum rather than a formula focused on only one concern.
Radiance Ampoule was also used within the separate Radiance Pod™ clinical study, allowing researchers to compare skincare alone with the combined device-and-skincare routine.
Radiance Ampoule Has Its Own Evidence
This article focuses specifically on the clinical results for Radiance Ampoule itself.
If you want to see what happened when Radiance Ampoule was used alongside Radiance Pod™, read our separate Radiance Pod clinical results guide .
The methodology
How Was Radiance Ampoule Clinically Tested?
The independent study assessed several different aspects of skin quality over a four-week period.
4 Weeks
Changes were assessed over a four-week period rather than relying solely on how the skin looked immediately after application.
22 Participants
Twenty-two participants completed the clinical study protocol.
Multiple Measurements
The study assessed lifting measurements, wrinkles, elasticity, hydration, brightness, radiance, pores, texture, transparency, moisture retention and density.
Independent Testing
The study was independently conducted by P&K Skin Research Center in South Korea.
The original study reported statistically significant improvements across the measured parameters compared with baseline, with results reported at p < 0.05.
As with any clinical skincare study, the results describe the performance of the product within the study population and should not be interpreted as a guarantee that every user will experience an identical percentage change.
Four-week clinical study
Radiance Ampoule Clinical Results at a Glance
Several of the headline findings relate directly to the way Radiance Ampoule is positioned today: hydration, radiance, smoothness and visible skin quality.
Improvement in skin hydration
Increase in inner cheek elasticity
Reduction in mouth-wrinkle depth
Improvement in skin radiance
Reduction in pore area
Improvement in skin texture
Study note: Results relate to the independent four-week Radiance Ampoule study involving 22 participants. Individual results may vary.
Firmness · elasticity · visible lines
What Did the Study Find About Lifting, Elasticity and Wrinkles?
The study assessed several facial areas rather than reducing anti-ageing performance to one wrinkle measurement.
| Measurement | Study Finding | Area Assessed |
|---|---|---|
| Chin lifting | 18% reduction in measured surface area | Chin |
| Cheek lifting | 22% increase in volume | Cheeks |
| Eye lifting | 15% reduction in hollowed volume | Eye area |
| Jawline measurement | 12% increase in measured angle | Jawline |
| Forehead lifting | 14% reduction in hollow volume | Forehead |
| Eye wrinkles | 19% reduction in wrinkle depth | Eye area |
| Mouth wrinkles | 21% reduction in wrinkle depth | Mouth area |
| Forehead wrinkles | 16% reduction in indentation index | Forehead |
| Surface elasticity | 23% improvement | Eye area |
| Inner elasticity | 25% improvement | Cheeks |
These measurements help explain why Radiance Ampoule can support a broader anti-ageing routine, but we would not describe the serum as a substitute for technologies designed specifically for skin lifting or tightening.
Its role today is clearer: daily hydration, radiance, smoother-looking skin and support for visible signs of ageing.
The everyday skincare story
Hydration, Radiance, Pores and Texture
These results are particularly relevant to the way Radiance Ampoule fits into a daily skincare routine today.
Hydration
Skin hydration increased by 28% during the study, while a separate moisture-retention measurement recorded a 30% improvement.
Brightness & Radiance
Skin brightness increased by 18%, while radiance intensity improved by 20%.
Pore Appearance
Pore area reduced by 24%, pore volume by 20% and pore depth by 15% within the study measurements.
Skin Texture
Skin texture improved by 22%, supporting the appearance of smoother and more even-looking skin.
Transparency
The transparency measurement improved by 18%, relating to clearer and fresher-looking skin.
Skin Density
Skin density increased by 20% during the four-week study.
Why the formula makes sense
A Multi-Benefit Serum Rather Than a Single-Concern Formula
The clinical findings span hydration, radiance, texture, elasticity and visible lines. That breadth fits the way Radiance Ampoule is formulated today.
Brightening Actives
Niacinamide, tranexamic acid and arbutin support brighter and more even-looking skin.
Multi-Level Hydration
Multi-molecular hyaluronic acid, beta-glucan and trehalose help support hydration, softness and a more supple-looking complexion.
Skin-Conditioning Support
Adenosine, panthenol, allantoin and botanical ingredients support skin comfort, smoothness and overall visible skin quality.
What participants reported
User Satisfaction During the Study
The study also recorded participants' own assessment of the changes they saw in their skin.
95.5%
Rated improvements in elasticity, brightness and hydration as good or very good.
90.9%
Reported satisfaction with the overall lifting effect measured within the study.
86.3%
Reported satisfaction with the improvement in visible wrinkles.
No Adverse Reactions
No adverse reactions were reported during the study.
Putting the numbers into context
What Do the Results Mean for Your Daily Routine?
The strongest reason to use Radiance Ampoule is not one isolated percentage. It is the breadth of concerns the formula can support.
If Skin Looks Dull
The improvements in brightness and radiance support its use when your complexion looks tired, flat or less luminous.
If Skin Feels Dehydrated
The hydration and moisture-retention findings support Radiance Ampoule as a useful daily serum when softness and moisture are priorities.
If Texture Looks Uneven
The texture and pore measurements support the serum's role in routines focused on smoother, more refined-looking skin.
If Fine Lines Are Becoming More Noticeable
Wrinkle and elasticity measurements support its place within a broader routine focused on visible signs of ageing.
What the Study Does — and Doesn't — Tell Us
The study gives us measurable evidence that Radiance Ampoule produced changes across several aspects of skin quality within the study population.
It does not mean every customer will experience exactly the same percentage improvement. Skin, routine, consistency and individual response all affect results.
Where it fits today
How to Use Radiance Ampoule in Your Routine
Radiance Ampoule now has a clear role as a versatile daily serum that can also sit naturally alongside Pure Tone Glow™ LED light therapy.
01 · Cleanse
Foaming Facial Cleansing Gel
Begin with freshly cleansed skin using the Pure Tone Aesthetics x Kimberley Walsh Foaming Facial Cleansing Gel.
02 · Apply
Radiance Ampoule
Apply a small amount over the face and neck to support hydration, radiance and smoother-looking skin.
Optional · LED
Pure Tone Glow™
Radiance Ampoule can also fit naturally around your LED skincare routine when using Pure Tone Glow™ according to the recommended device protocol.
03 · Moisturise
Polynucleotide Moisturising Cream
Finish with the Pure Tone Aesthetics x Kimberley Walsh Polynucleotide Moisturising Cream to support hydration and skin comfort.
Two serums · different roles
Radiance Ampoule or Polynucleotide Serum?
Both are high-performance serums, but they fit slightly different routines and priorities.
Choose Radiance Ampoule
Choose Radiance Ampoule when you want a versatile everyday serum focused on radiance, hydration, uneven-looking tone and smoother-looking skin.
It also fits naturally around regular Pure Tone Glow™ LED use.
Choose Polynucleotide Serum
Choose the Pure Tone Aesthetics x Kimberley Walsh Polynucleotide Serum when you want the dedicated serum step within the complete Kimberley Walsh skincare routine.
Its PDRN-led formulation has its own distinct ingredient story focused on hydration, skin renewal and overall visible skin quality.
Skincare development · independent testing
Developed and Produced in South Korea
Pure Tone Aesthetics skincare is developed and produced in South Korea, drawing on advanced Korean cosmetic formulation alongside our experience in professional aesthetics technology and at-home skincare devices.
South Korean Development
Radiance Ampoule forms part of our wider skincare range developed and produced in South Korea.
Ingredient-Led Formulation
The formula combines established brightening, hydrating and skin-conditioning actives within one lightweight serum.
Independent Testing
The four-week clinical study was independently conducted by P&K Skin Research Center in South Korea.
Clinical evidence · serum · routine
Radiance Ampoule Clinical Study FAQs
Has Radiance Ampoule been independently clinically tested?
Yes. Radiance Ampoule was assessed in an independent four-week clinical study involving 22 participants. Measurements included hydration, elasticity, wrinkles, radiance, pore appearance, texture and skin density.
How long was the Radiance Ampoule clinical study?
The study ran for four weeks, allowing changes to be assessed over repeated use rather than relying solely on how the skin looked immediately after application.
How many people took part in the study?
Twenty-two participants completed the clinical study protocol.
What were the headline Radiance Ampoule results?
Headline findings included a 28% improvement in hydration, 25% increase in inner cheek elasticity, 21% reduction in mouth-wrinkle depth, 20% improvement in radiance, 24% reduction in pore area and 22% improvement in skin texture.
Individual results may vary.
Did Radiance Ampoule improve hydration?
Yes. Skin hydration improved by 28% during the study, while a separate moisture-retention measurement recorded a 30% improvement.
Did Radiance Ampoule improve the appearance of wrinkles?
The study recorded reductions in wrinkle measurements across several areas, including a 19% reduction in eye-wrinkle depth, 21% reduction in mouth-wrinkle depth and a 16% reduction in the forehead indentation index.
Can Radiance Ampoule be used without a skincare device?
Yes. Radiance Ampoule is designed as a standalone daily serum focused on hydration, radiance, smoother-looking skin and a more even-looking complexion. It can also be incorporated around compatible skincare-device routines.
Can I use Radiance Ampoule with Pure Tone Glow?
Yes. Radiance Ampoule can fit naturally around a Pure Tone Glow™ LED skincare routine. Follow the recommended skincare order and device instructions when using the two together.
What is the difference between Radiance Ampoule and the Polynucleotide Serum?
Radiance Ampoule is a versatile daily serum focused on radiance, hydration, uneven-looking tone and smoother-looking skin, with a natural role alongside LED skincare. The Pure Tone Aesthetics x Kimberley Walsh Polynucleotide Serum is the dedicated PDRN-led serum step within the complete Kimberley Walsh skincare routine.
Does a clinical study mean everyone will see the same results?
No. Clinical results describe how the product performed within the study population under a defined protocol. Individual results can vary according to skin, routine, consistency and other factors.
The important part
The Results Support the Serum's Versatility
Radiance Ampoule does not need to be positioned as a serum that does everything. Its role is much clearer: a lightweight daily formula for hydration, radiance, smoother-looking skin and uneven-looking tone.
The independent study supports that broader skin-quality story, with measurable changes recorded across hydration, elasticity, wrinkles, radiance, texture, pores and density.
That makes Radiance Ampoule useful both as a straightforward everyday serum and as skincare that can sit naturally alongside Pure Tone Glow™ LED light therapy.
Daily radiance · hydration · LED-friendly versatility
Explore Radiance Ampoule
Discover the complete formula, ingredient story and how Radiance Ampoule can fit into your everyday skincare or Pure Tone Glow™ LED routine.