Forensic Comparison

Mühle Rocca R94 Pure Stainless Steel Safety Razor VS Supply SE Single Edge Injector Razor

REF #96
AA+

Mühle Rocca R94 Pure Stainless Steel Safety Razor

Cost Per Year
$20.90/yr
MSRP
$127
Horizon
50.00 Years
Waste Factor
4x Units Avoided
Full Audit
REF #98
AA

Supply SE Single Edge Injector Razor

Cost Per Year
$28.69/yr
MSRP
$59
Horizon
20.00 Years
Waste Factor
3x Units Avoided
Full Audit

Financial Trajectory

Audit Winner
Supply SE Single Edge Injector Razor
NPV Cost:$110
Day 1
$0$39$78$117$156Yr 0Yr 10Yr 20Yr 30Yr 40Yr 50
Winner
Disposable Baseline
MetricMühle Rocca R94 Pure Stainless Steel Safety RazorSupply SE Single Edge Injector Razor
MSRP$127$59
20-Year TCO$311$427
Cost Per Year$20.90/yr$28.69/yr
Waste Factor4x Avoided3x Avoided

Failure Threat Matrix: Mühle Rocca R94 Pure Stainless Steel Safety Razor

  • Bent safety bar/top cap
    Risk: Low (Requires drop)
    Do not tap razor against sink; use a towel. Do not drop on tile.
  • Thread stripping
    Risk: Very Low
    Do not overtighten the handle. Clean threads occasionally.

Failure Threat Matrix: Supply SE Single Edge Injector Razor

  • Brittle Fracture
    Risk: Low (requires drop)
    Do not drop on hard surfaces (tile/granite). Use a grip sleeve or stand.
  • Spring Fatigue
    Risk: Very Low
    Covered by lifetime warranty. No user mitigation available.
  • PVD Coating Wear
    Risk: Low
    Clean regularly to prevent soap scum buildup which can look like wear.

Efficiency Verdict

Analysis confirms that Mühle Rocca R94 Pure Stainless Steel Safety Razor provides the superior ROI over a 20-year horizon, saving approximately $7.79/yr compared to the alternative.