Audit Ref #0098AA

Supply SE Single Edge Injector Razor

Supply // China // SE-Razor

Financial Physics

Cost Per Year (NPV)
$28.69/yr
Actuarial Lifespan
20 YEARS[1,2]
*Projected against 20yr Audit Horizon

Technical Manifest

  • OriginChina
  • MaterialDie-cast Zinc Alloy, Physical Vapor Deposition (PVD) Coating[3]
  • Warranty100-Year Limited Warranty[1,2]
  • Repairability2/10(GOOD Parts)[9]
  • "Score 2/10: The razor is a single integrated unit. The tension spring is internal and not accessible without destroying the housing. However, the device requires no maintenance other than cleaning and blade changes."

The Comparison Standard

Compared against Gillette Mach3 Men's Razor Handle + 2 Blade Refills
Baseline MSRP$10
Baseline Life5 Yrs

Financial Verdict

"Constructed from die-cast zinc alloy with a durable PVD coating used in aerospace applications. While the material is resistant to corrosion, zinc alloy is brittle and may fracture if dropped on hard surfaces like tile."
Verdict based on EA-Protocol v4.0 (AI Synthesis + Human Verification)
Maintenance Profile
Consumables Req.
Maint. Burden
$24.00/yr
Protocol

"Requires replacement injector blades. Supply recommends changing blades every 8-10 shaves. Cleaning involves simple rinsing."

Cost Breakdown
  • Black Label Injector Blades (8-pack)$24.00/yr
Eq: Based on average shaving frequency (4x/week) and manufacturer rating of 8 shaves per blade. ~32 blades/year. 4 packs @ $6/pack = $24/yr.

Failure Threat Matrix[5,6,7,8]

Failure ModeLikelihoodEst. OnsetMitigation Strategy
Brittle FractureLow (requires drop)Random
Do not drop on hard surfaces (tile/granite). Use a grip sleeve or stand.
Spring FatigueVery LowRandom
Covered by lifetime warranty. No user mitigation available.
PVD Coating WearLowRandom
Clean regularly to prevent soap scum buildup which can look like wear.

TCO Projection Model

Ownership Premium

Precision Asset
Premium:$26.51/yr

Justified by 3x waste reduction.

Adjust Variables
Inputs:$59 CapEx/20yr Horizon
Real Cost:$28.69/yr
Adj. for 3.0% Cost of Capital

The Rockwell 6S Adjustable Stainless Steel Safety Razor offers a 59% better ROI.

View Winner
Audit Winner
Supply SE Single Edge Injector Razor
NPV Cost:$751
Year 1
$0$437$875$1312$1749Yr 0Yr 10Yr 20Yr 30Yr 40Yr 50
Winner
Disposable Baseline
Rivals
Real CPY (NPV)
$28.69
Est. Life
20 Yrs
Waste Reduction
3x Less Trash
Lead Curator
Earthly Abode
View Audit Protocol
Data Current
Jan 17, 2026
Method
Hybrid-Forensic v4.0
Statement of Liability: This audit represents a best-effort projection based on manufacturer technical specifications and historical user data. It is a financial estimate, not a guarantee of performance.

Audit Evidence Ledger

Data Confidence Score
(5/5)

High Fidelity: Verified by >5 independent data sources.

Lifespan Data
  • [1]
    supply.co...
    "Manufacturer offers 100-year warranty on structural defects"
  • [2]
    amazon.com...
    "Reviews indicate construction is heavy and solid, expected to last indefinitely if not dropped"
Materials & Specs
  • [3]
    supply.co...
    "Product page specifies Die-Cast Zinc Alloy construction with PVD coating"
Last Verified: 1/20/2026
Data Quality Note

"Maintenance cost calculated using Supply brand blades ($6/pack). Costs can be reduced to ~$12/year by using generic Personna injector blades ($15 for 20 blades). Repairability is low because the device is a single unit; however, warranty coverage is high."

Compliance Statement: All technical claims are traced to manufacturer documentation or independent material analysis. Financial projections are based on these verified inputs.

Cite this Audit

Earthly Abode. (Jan 17, 2026). Forensic Audit: Supply SE Single Edge Injector Razor. Retrieved from https://earthlyabode.com/product/98-supply-se-single-edge-injector-razor

LIMITATION OF LIABILITY: This audit is a financial projection tool for informational purposes only. All cost estimates, lifespan predictions, and durability assessments are based on historical data, manufacturer specifications, and statistical modeling—not guaranteed outcomes.

TECHNICAL SOURCING: Technical specifications (e.g., material composition, IP ratings, warranty terms) are sourced directly from manufacturer documentation, patents, and publicly available material data sheets. While we verify claims against material science principles, we cannot independently test every unit for manufacturing defects.

FTC: Affiliate links sustain this research.

Amortized Cost / Year

$28.69

*3% Discount Rate Applied


Lifespan
20yr
Liquidity
$30
Waste
3x
Market Availability