Clinical evidence
Eight weeks, two hundred participants, and the limitations stated plainly
This page sets out exactly what we measured and how. Where the evidence is weaker than a marketing team would like, we have left that in.
Section 01
What was studied
Self-reported and observer-graded change in scalp condition, hair density and skin comfort among users of Scalp Saver, ZINSAS, D-ACNE and MCLEAN under normal daily use.
Section 02
Study duration
Eight weeks of continuous use, with assessment points at baseline, week 4 and week 8.
Section 03
Participants
200 participants across Lahore, Karachi, Islamabad, Multan and Peshawar. Mixed genders, ages 21–52, including post-transplant and post-PRP patients within their clinician-cleared window.
Section 04
Methodology
Participants used assigned products as directed alongside their usual routine. Data was collected through structured questionnaires and standardised photography under fixed lighting. This was an internal, unblinded study without a placebo arm.
Section 05
What the numbers mean
A figure such as 46% means 46% of participants recorded improvement on that measure at week 8 versus their own baseline. It does not mean a 46% change in any physical quantity, and it is not a comparison against another product.
Section 06
Limitations
The study was run by RK Derma Care, not an independent institution. There was no placebo control and no blinding, and a share of the outcomes are self-reported. These results support our claims; they are not a substitute for peer-reviewed clinical research, and we do not present them as such.
Headline results
Week 8, versus each participant's own baseline
- 47%
- reported reduced irritation and clearer skin
- 50%
- reported improved oil balance and comfort
- 48%
- reported stronger texture and more even tone
Source: RK Derma Care internal trial, 8 weeks, 200 participants, five cities.
Questions about the trial
Reasonable scepticism
No. The study was designed and run internally by RK Derma Care. We report it as internal evidence, not as independent medical research.
No placebo arm was used. Each participant acted as their own baseline comparison across the eight weeks.
Summary methodology and results are available on request through our contact page for clinicians and partners.
The trial covered four products. Where a product has no product-specific figures, our pages fall back to the brand-wide trial results and label them as such.