Rakkohauru Super Serum: Clinical Study Under Dermatological Control
When you have sensitive, reactive skin, you have learned to distrust big claims. You have tried serums that promised the world and left your skin stinging, so a number on a bottle means little without proof behind it. This is that proof. Saaren Taika Rakkohauru Super Serum was tested in an independent clinical study by Eurofins, under dermatological control, and the results were measured on the finished serum, not just the raw ingredient.
What the clinical study measured
The study confirmed a significant reduction in wrinkles, improved elasticity and firmness, smaller pores, less pigmentation, and calmer redness and itching, while strengthening your skin barrier. In other words, it addressed several concerns at once and stayed gentle enough for reactive skin while doing so.
Over 28 days of twice-daily use, the serum delivered wrinkles reduced by 29.9%, skin laxity reduced by 18.8%, elasticity and firmness improved by 14.3%, pores reduced by 37.1%, pigmentation reduced by 39.6%, redness reduced by 53.3%, itching reduced by 73.9% and transepidermal water loss reduced by 20.7%.
How Rakkohauru Super Serum stands out
Most serums do one thing. In this study, Rakkohauru Super Serum showed exceptionally comprehensive results, easing eight measured concerns at once, from wrinkles and pores to pigmentation, redness and itching, while lowering moisture loss and reinforcing your skin barrier. For sensitive skin, that combination of visible anti-aging results and genuine gentleness is rare.
Why 20 participants is a valid standard
You may wonder whether 20 participants is enough to trust. In clinical cosmetics research, 20 volunteers is an accepted industry standard for supporting strong claims when the results are statistically significant. The EU Cosmetics Regulation (EC No 1223/2009) and the Claims Regulation (EU No 655/2013) require every cosmetic claim to be backed by adequate, verifiable evidence, and the Commission's 2017 technical document specifies that studies must be reliable, reproducible and statistically significant, without setting a minimum participant number.
Independent research institutes such as Eurofins typically run in-use clinical studies with 20 volunteers, because this number reliably produces statistically significant results on outcomes like wrinkle reduction, improved elasticity or reduced redness. What matters most is that the study follows an approved protocol, is supervised by an ethics committee and is analysed with proper statistical methods.
In-use test under dermatological control
The study ran over 28 days of twice-daily use, with final assessments after roughly four weeks and a protocol margin of plus or minus two days. Participants applied the serum to the crow's feet, forehead and under-eye area before moisturizer.
For wrinkles, clinical grading showed a statistically significant reduction around the crow's feet, forehead and under-eye area after 28 days, and Visioline® VL 650 skin topography analysis confirmed reduced wrinkle area, length, depth and number after 29 days. Pore size was significantly reduced after 29 days. Redness was significantly reduced after 29 days by both clinical evaluation and Mexameter® MX18, pigmentation decreased significantly after 28 days, and itching improved significantly by self-assessment. The Dermatology Life Quality Index showed a significant improvement in participants' perceived wellbeing.
For elasticity and firmness, Cutometer® MPA 580 measurements confirmed significant improvements after 29 days, with reduced skin deformation and increased elastic recovery. For the skin barrier, Tewameter® TM 300 showed significantly reduced transepidermal water loss after 29 days, indicating a stronger barrier and better moisture retention.
Summary of the results
Under study conditions, Saaren Taika Rakkohauru Super Serum showed a significant reduction in wrinkles by both clinical and instrumental measurement, a significant reduction in pore size, significantly less redness, itching and pigmentation, significantly improved elasticity and firmness, a significantly stronger skin barrier measured by TEWL, and a significant improvement in participant wellbeing measured by DLQI.
What participants experienced
After 28 days, 100% of participants reported their skin felt hydrated, nourished, soft, silky and smooth, and said their skin looked younger, fresher and firmer, with reduced pore size, less redness, less itching and improved texture. Participants were satisfied with the results, willing to buy and reuse the serum, and would recommend it to a friend. Over 95% reported visibly reduced wrinkles and fine lines.
Study design
The study included 20 participants aged 40 to 70, with normal to dry, eczema-prone skin and erythema. The serum was applied twice daily for 28 days, plus or minus two, focusing on the crow's feet, forehead and under-eye area before moisturizer, with a neutral moisturizer allowed if needed. It was conducted under dermatological control with continuous monitoring of tolerance, and the serum was well tolerated. This was an independent study by Eurofins, completed in 2025.
Methods included clinical grading of wrinkles, pores and skin condition, and instrumental measurements with Visioline® VL 650 for wrinkles, Mexameter® MX18 for redness, Cutometer® MPA 580 for elasticity and firmness, and Tewameter® TM 300 for barrier strength and TEWL, alongside self-assessments of itching and the DLQI questionnaire.
Consumer studies versus clinical studies
It helps to know the difference. Consumer studies reflect how people feel about a product, but they can lean toward positive feedback. Clinical and dermatological studies like this one are independent, supervised by physicians and run to strict scientific protocols, so they assess safety and efficacy objectively and report both positive and negative outcomes. That independence is exactly what makes these numbers worth trusting.
Frequently asked questions
Who ran the study?
It was an independent clinical study conducted by Eurofins under dermatological control, completed in 2025. Saaren Taika makes the serum, but the testing was carried out independently.
How long did it take to see results?
The serum was used twice daily for 28 days, with instrumental measurements taken at around 28 to 29 days. Many results, like hydration and comfort, are noticeable sooner.
Is it gentle enough for sensitive, reactive skin?
Yes. Participants had normal to dry, eczema-prone skin with redness, and the serum was well tolerated throughout, while significantly reducing redness and itching.
What makes these results trustworthy?
They were measured on the finished serum, not just the raw ingredient, using validated instruments under an approved protocol with proper statistical analysis.
Ready to feel it on your own skin? Discover Saaren Taika Rakkohauru Super Serum, the serum this clinical study was built on.