Independent testing

Tested, not just claimed

We would rather show our working. Every Korabeauticals device is developed against published clinical evidence, and it is the finished product — not a prototype — that gets tested.

  • 100%of our devices are independently tested before sale
  • 252people across our four studies
  • 96%would recommend Korabeauticals

Draft figures. Every number here is a placeholder until the laboratory reports are confirmed.

Study by study

The evidence behind each product

One entry per product: how it was tested, by whom, and what came back. Across the four studies below, 252 people took part, and 96% said they would recommend the product they tested. Underneath, the independent published research the technologies are built on.

Korabeauticals V2 Pro

Skin firmness, texture and downtime over eight weeks

An at-home study of the V2 Pro used on the full face once a week. Firmness and surface texture were measured instrumentally at baseline, week 4 and week 8, and participants recorded how long visible redness lasted after each session.

Conducted by Add the laboratory or clinic, and the month and year
Device Korabeauticals V2 Pro, 16-needle cartridge, 0.25–1.5 mm depth
Participants 62 adults, ages 30–60, Fitzpatrick I–IV, mild to moderate photoageing
Duration 8 weeks of treatment, plus a 4-week follow-up
Protocol One session per week: 1.0 mm on cheeks and forehead, 0.5 mm around the eyes
Measured by Cutometer for firmness and elasticity; 3D surface imaging for texture; standardised photography under fixed lighting
Assessment Two dermatologists, blinded to timepoint, graded baseline and week-8 photographs. Downtime self-recorded after each session.
  • 00% Change in skin firmness (Cutometer R2)
  • 00% Change in surface roughness (3D imaging)
  • 00 Hours to visible redness clearing

Aquashield Shower Filter

Chlorine reduction across a full cartridge, and skin moisture

Two parts. Water was sampled at the inlet and at the shower outlet across the full rated life of one cartridge, so performance is reported at the end of life rather than only when new. Separately, forearm skin moisture was measured before and after four weeks of daily filtered showers.

Conducted by Add the water-testing laboratory, and the month and year
Product Korabeauticals Aquashield, three-stage cartridge: activated carbon, KDF-55, calcium sulfite
Water conditions 40 °C at 9.5 L/min, inlet free chlorine 1.0–2.0 mg/L
Sampling Inlet and outlet sampled at 0, 25, 50, 75 and 100% of the cartridge's rated life
Participants 74 adults, showering daily with the filter fitted for 4 weeks
Measured by DPD colorimetric method for free chlorine; ICP-MS for heavy metals; corneometer for forearm skin moisture
Standard Add the test standard the laboratory worked to
  • 00% Free chlorine reduction, new cartridge
  • 00% Free chlorine reduction, end of rated life
  • 00% Change in forearm skin moisture

Laser Hair Removal Handset

Hair reduction, comfort and skin response across a course

A split-body study: one side of the body was treated and the other left untreated as a control, so regrowth could be compared against the same person rather than against a baseline photograph. Hairs were counted in a fixed, marked area at baseline and at two follow-up points.

Conducted by Add the clinic or laboratory, and the month and year
Device Korabeauticals diode laser handset, 808 nm, up to 25 J/cm²
Participants 48 adults, ages 18–55, Fitzpatrick I–V, with dark terminal hair
Areas treated Lower legs and underarms. One side treated, the other side an untreated control.
Protocol 8 sessions, one every two weeks, at each participant's highest comfortable energy setting
Measured by Macro photography of a marked 4 cm² reference area; hair counts at baseline, week 16 and week 28
Assessment Counts made by an assessor blinded to which side was treated. Comfort rated 0–10 after each session; skin checked for erythema at 24 hours.
  • 00% Hair reduction at end of course (week 16)
  • 00% Hair reduction at follow-up (week 28)
  • 00% Rated the sessions comfortable

C15 Antioxidant Complex

Formula stability, and change in brightness and even tone

Vitamin C degrades in the bottle, so two things were tested. First, how much active ascorbic acid remains over a year at normal and elevated storage temperatures. Second, what changed in the skin over twelve weeks of daily morning use.

Conducted by Add the laboratory, and the month and year
Product C15 Antioxidant Complex — 15% L-ascorbic acid with vitamin E and ferulic acid (add exact percentages)
Stability testing HPLC assay of ascorbic acid at 0, 3, 6 and 12 months, stored at 25 °C and at 40 °C
Participants 68 adults, ages 25–60, Fitzpatrick I–V, with uneven tone or visible sun damage
Duration 12 weeks
Protocol Applied to clean skin each morning, before sunscreen
Measured by Chromameter for tone evenness; Mexameter for melanin index; standardised photography under fixed lighting
  • 00% Ascorbic acid remaining at 12 months, 25 °C
  • 00% Change in skin brightness (chromameter L*)
  • 00% Change in evenness of tone (melanin index)

Wider published research

Peer-reviewed work on the technologies behind our products. These are papers by independent researchers, not studies of Korabeauticals devices.

Results vary from person to person. Any figure shown above comes from the study described beside it, and is not a promise of individual results.