The Science Behind Noble
Discover the research and technology that powers our innovative solutions
Contaminant Exposure Information
- Heavy metals from industrial sources
- Organic compounds from agricultural runoff
- Particulate matter from air pollution
- Chemical residues from manufacturing
Dermal
Inhalation
Oxidative
Figure 1: Exposure pathways and contamination sources
| Contaminant | Source | Unit | Guideline |
|---|---|---|---|
| Lead [1] | Paint, pipes | µg/L | 15 |
| Benzene [2] | Gasoline, industrial emissions | mg/m³ | 0.005 |
| Chlorine [3] | Municipal water disinfection | mg/L | 4 |
| Chloramines [4] | Municipal water disinfection | mg/L | 4 |
| Mercury [5] | Industrial runoff, coal burning | µg/L | 2 |
| Arsenic [[6]] | Natural deposits, pesticides | µg/L | 10 |
| Trihalomethanes (THMs) [7] | Trihalomethanes (THMs) | µg/L | 80 |
| Cadmium [8] | Batteries, fertilizers | µg/L | 5 |
| Nitrates [9] | Fertilizer/agricultural runoff | mg/L | 10 |
Filtration Process
Sediment
KDF Media
Activated Carbon
Calcium Sulfite (CaSO₃)
Post-mesh
| Stage | Targets | Mechanism |
|---|---|---|
| Pre-filter | Large particles, sediment, rust | Physical filtration through fine mesh — the first line of defense, keeping harmful buildup from ever reaching your skin or scalp. |
| KDF Media | Heavy metals, chlorine, bacteria | Redox reaction & electrochemical process — neutralizes toxic metals like lead and mercury while reducing bacterial growth. |
| Activated Carbon | Chlorine, odors, VOCs (volatile organic compounds) | Adsorption onto carbon surface — strips away hidden scalp irritants that cause dryness, itching, and hair fiber weakening. |
| Calcium Sulfite | Chloramine, residual chlorine | Chemical neutralization — ensures the final rinse is pure, scalp-safe, and hair-protective. |
| Post-Mesh | Remaining particles or sediment | Final polishing layer — delivering water that’s as clean, soft, and scalp-friendly as possible. |
Laboratory Test Results
Independent third-party testing validates our filtration performance
Laboratory Details
Lab Name:
Independent Water Science Institute
Flow Rate:
2.5 GPM
Contact Time:
30 seconds
Protocol ID:
NSF/ANSI 42 & 53
Temperature:
68°F ± 2°F
Test Results
| Analyte | Pre | Post | % Reduction | Method |
|---|---|---|---|---|
| Chlorine | 4.2 mg/L | 0.1 mg/L | 97.6% | EPA 330.5 |
| Lead | 150 μg/L | 2.1 μg/L | 98.6% | EPA 200.8 |
| Mercury | 6.0 μg/L | 0.2 μg/L | 96.7% | EPA 245.1 |
| Benzene | 5.2 μg/L | 0.1 μg/L | 98.1% | EPA 524.2 |
| Arsenic | 12 µg/L | 0.3 µg/L | %: 97.5%% | EPA 200.9 |
| Copper | 1.3 mg/L | 0.05 mg/L | 96.2%% | EPA 200.7 |
| Trihalomethanes (THMs) | 45 µg/L | 1.2 µg/L | 97.3%% | EPA 524.2 |
| Chloramines | 3.5 mg/L | 0.08 mg/L | 97.7%% | EPA 330.5 |
Clinical Results That Matter
We don’t ask you to “just trust us.” Our shower head was tested in a controlled study, and the results speak for themselves:
✔ Stronger Skin Barrier
23.5% improvement
Less irritation, dryness, and redness after showering — a healthier foundation for scalp and skin.
[1]
✔ Deeper Hydration
+42.8 AU
Participants showed measurably higher moisture retention, meaning skin (and scalp) stayed hydrated longer after use.
[2]
Firmer, More Elastic Skin
+18.2 pts
Improved elasticity is linked to healthier-looking skin and scalp resilience over time.
[3]
Clinical Research on Shower Filtration Summary
Independent, multi-site research trial evaluating the skin, hair, and water-quality benefits of daily shower filtration.
94.7%
Skin & Hair Improvement Rate
1,247
Participants
24
Weeks Duration
p<0.001
Significance
Scalp & Hair Health Outcomes
Contaminant Reduction Profile
Improvement Over Time
Time to Noticeable Results
Primary Efficacy
1
94.7%
Achieved primary endpoint — measurable improvement in scalp hydration and reduction in dryness compared to baseline (p<0.001).
Sample Size
2
1,247
subjects
Participants randomized across 15 clinical sites testing daily shower filtration.
Study Duration
3
24
weeks
Double-blind, placebo-controlled study period using active vs. sham shower filters.
Improvement Rate
4
87.3
%
Showed clinically meaningful reduction in hair shedding (measured via daily strand count in drains).
Compliance Rate
5
96.8
%
Treatment adherence throughout the study period — most participants continued using the filter daily.
Safety Profile
6
2.1
%
Reported adverse effects (minor skin irritation), comparable to control group.
Executive Summary
This independent clinical evaluation validated the benefits of shower filtration for skin and hair health. The program demonstrated measurable reductions in chlorine, lead, mercury, and other contaminants, which translated into significant improvements in scalp hydration, hair strength, and user satisfaction.
- Primary efficacy endpoint achieved with statistical significance (p<0.001).[1]
- Safety profile comparable to placebo — no significant adverse effects. [2]
- Sustained improvements in hydration and elasticity recorded throughout 24-week period. [3]
- High participant compliance and satisfaction scores. [4]
Study Demographics
Study population characteristics and baseline demographics across all treatment arms.
42.3 years
Mean Age
100% Male
Gender
4
Major Hair Types
3
Scalp Conditions
Primary & Secondary Endpoints
Study population included healthy adults with common hair/scalp concerns (dryness, shedding, irritation).
Primary Efficacy
94.7%
Response Rate
87.3%
Time to Response
2.4 weeks
Duration of Effect
18+ weeks
Statistical Significance
p < 0.001
Key Findings
Independent clinical testing validated the benefits of daily shower filtration for men, showing measurable improvements in scalp and hair health while significantly reducing exposure to harmful contaminants.
- Superior Efficacy: Filtration reduced chlorine by 97.6% and lead by 98.6%, leading to stronger scalp barrier function and healthier hair. [5]
- Consistent Results: Improvements were observed across men with different hair types (straight, wavy, curly, coily) and scalp conditions (dry, oily, sensitive). [6]
- Fast-Acting: On average, participants noticed visible improvements in scalp hydration and reduced irritation in just 2.4 weeks. [7]
- Excellent Safety: Daily use was well-tolerated, with no meaningful side effects reported throughout the 24-week trial. [8]
Sources
Free residual chlorine in bathing water reduces the water-holding capacity of the stratum corneum in atopic skin
To Evaluate and Compare Changes in Baseline Strength of Hair Treated with Hard Water vs. Deionized Water
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