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Independent real-world evidence

Clear Days Serum : 2% Salicylic + 4% Niacinamide

Lumen Lab
Verified by Verdict · claim partly supported · 120 panelists · randomised
Sample data · simulated cohort
Met score threshold
65%
by week 8 · vs 15% on usual routine
Beats control from
wk 3
half of users saw it by wk 4
Tested on
III · IV · V–VI
Fitzpatrick types (measured)
Stopped for irritation
5%
of product users
Claim on trial · final
Sample data · simulated cohort
Lumen Lab · Clear Days Serum : 2% Salicylic + 4% Niacinamide
Partly supported
“Visibly fewer breakouts in just 14 days : for every Indian skin tone.”
  • Effect
    Breakouts
    Supported

    Breakouts improved 6.5 points vs. usual routine at week 8 (95% CI 4.5 to 8.5, p<0.001).

  • Timeframe
    Breakouts
    Partly supported

    Not significant at 14 days (week 2: +1.2, p=0.093). An unadjusted weekly comparison crossed the threshold at week 3; this does not confirm onset.

  • Skin tones
    Breakouts
    Partly supported

    Supported for Fitzpatrick III, IV, V–VI. Untested: I–II (n=4): "every skin tone" needs evidence there too.

What the evidence lets you say
AI-measured breakouts scores improved at week 8: tested on Fitzpatrick III–VI skin.*

*In an 8-week randomised real-world study of 120 adults (Fitzpatrick III–VI), breakouts improved significantly vs. usual routine at the planned final readout, week 8; 65% of users saw a measurable reduction by week 8 (vs 15% on their usual routine). Exploratory AI score analysis, not clinical proof or confirmation of a visible benefit. Weekly and subgroup comparisons are unadjusted for multiple testing.

Breakouts: change vs usual routine
0+5+10Week 1: product +0.1, control 0.64; difference -0.54 (p=0.4608)Week 2: product +1.62, control 0.39; difference 1.23 (p=0.0933)Week 3: product +3.66, control 0.39; difference 3.27 (p=0.0001)Week 4: product +5.72, control 0.5; difference 5.22 (p=0)Week 5: product +6.77, control 0.98; difference 5.79 (p=0)Week 6: product +7.46, control 0.71; difference 6.75 (p=0)Week 7: product +7.99, control 1.04; difference 6.95 (p=0)Week 8: product +7.93, control 1.45; difference 6.48 (p=0)basew1w2w3w4w5w6w7w8
By skin tone
0+5+10Fitzpatrick I–IIn=4too few panelists to testFitzpatrick IIIn=35Fitzpatrick III: +8.2 (95% CI 3.8 to 12.7), p=0.0008+8.2 ✓Fitzpatrick IVn=44Fitzpatrick IV: +5.0 (95% CI 2.1 to 8.0), p=0.0015+5.0 ✓Fitzpatrick V–VIn=25Fitzpatrick V–VI: +7.7 (95% CI 1.9 to 13.4), p=0.0154+7.7 ✓
Matched to measured effect
Week 0
⇆
Week 0Matched to measured effect
Evidence-matched visual
What the average effect actually looks like.

A YouCam Skin Simulation render, blended until YouCam Skin Analysis measures +8.0 points, the closest match to this study's +6.5-point breakouts effect vs control. Shown on an AI-generated sample face. Not a best case, not a panelist.

Add this proof to a product page

Brands and retailers can embed the live, verified result next to the buy button.

<iframe src="https://verdict-skin.web.app/embed/lumen-lab-clear-days-serum" width="420" height="190" style="border:0" title="Verified by Verdict"></iframe>

Add ?fitz=IV (or the shopper's measured type) to show results for skin like theirs. See it on a demo product page →

Our commitment: every study's protocol is locked at launch (this study: protocol #eec3cdd95d), and every completed result is published here, supported or not. Brands pay for the study, not for the outcome.

Method: 8-week decentralised randomised study vs usual routine; assessor: YouCam AI Skin Analysis (raw scores); Welch's t-test, 95% CIs; responders = improvement ≥ the planning score threshold. Real-world evidence complements but does not replace dermatologist-supervised clinical trials. Demo data: cohort panelists are simulated.