Bryan Johnson Blueprint vs Hoshino Seichaen Matcha: 2026 Comparison
This 2026 comparison covers Bryan Johnson Blueprint and Hoshino Seichaen across price, testing transparency, heavy metal disclosure, and organic certification. Bryan Johnson Blueprint publishes a numeric Certificate of Analysis with specific ppb values from a named lab. Hoshino Seichaen has not published equivalent numeric results as of the last verification date. On price, Bryan Johnson Blueprint is $1.15/g less expensive per gram ($1.10/g vs $2.25/g).
Verdict by Axis
No single overall winner is declared. The better choice depends on which axis matters most to you.
Price per gram
Bryan Johnson Blueprint
Bryan Johnson Blueprint is $1.15/g cheaper ($1.10/g vs $2.25/g).
Testing transparency
Bryan Johnson Blueprint
Bryan Johnson Blueprint is Tier 1 vs Unrated for Hoshino Seichaen. Lower tier number means more disclosure.
Published lead level
Tie / indeterminate
Bryan Johnson Blueprint publishes a lead value (98 ppb). Hoshino Seichaen has not published a numeric lead value. Cannot compare directly.
Origin
Tie / indeterminate
One or both brands have not publicly disclosed their leaf origin region.
Organic certification
Hoshino Seichaen
Hoshino Seichaen holds ORGANIC certification. Bryan Johnson Blueprint does not have a publicly confirmed organic certification.
Side-by-Side Spec Table
| Field | Bryan Johnson Blueprint | Hoshino Seichaen |
|---|---|---|
| Origin | Not disclosed | Japan |
| Grade | Ceremonial | Ceremonial |
| Price per gram | $1.10/gBetter | $2.25/g |
| Transparency tier | Tier 1 | -- |
| Publishes numeric COA | YesBetter | No |
| Third-party tested | YesBetter | No |
| Organic certification | None | ORGANIC |
| Lead (published) | 98 ppb | Not publicly published (checked June 27, 2026) |
| Cadmium (published) | 17 ppb | Not publicly published (checked June 27, 2026) |
| Arsenic (published) | 18 ppb | Not publicly published (checked June 27, 2026) |
| Mercury (published) | 4 ppb | Not publicly published (checked June 27, 2026) |
| Pesticide tested | No | No |
| Last verified | June 21, 2026 | June 27, 2026 |
Origin
Grade
Price per gram
Transparency tier
Publishes numeric COA
Third-party tested
Organic certification
Lead (published)
Cadmium (published)
Arsenic (published)
Mercury (published)
Pesticide tested
Last verified
Heavy Metals and Safety Disclosure
Bryan Johnson Blueprint reports a lead level of 98 ppb (verified June 21, 2026). Hoshino Seichaen has not published a numeric lead value (checked June 27, 2026). Without a published value from Hoshino Seichaen, a direct comparison is not possible. The absence of published data does not indicate safety or danger.
| Metal | Bryan Johnson Blueprint | Hoshino Seichaen |
|---|---|---|
| Lead | 98 ppb | Not publicly published (checked June 27, 2026) |
| Cadmium | 17 ppb | Not publicly published (checked June 27, 2026) |
| Arsenic | 18 ppb | Not publicly published (checked June 27, 2026) |
| Mercury | 4 ppb | Not publicly published (checked June 27, 2026) |
Source: brand-published COAs and independent test results. Values are from specific batches and dates. Absence of published data does not indicate safety or danger. Last verified: Bryan Johnson Blueprint June 21, 2026, Hoshino Seichaen June 27, 2026.
Price Comparison
Bryan Johnson Blueprint is $1.15/g cheaper than Hoshino Seichaen ($1.10/g vs $2.25/g, a 51% difference). At 30 servings per month, that is approximately $69/month in savings.
Detailed Analysis
Testing Transparency
Bryan Johnson Blueprint publishes a numeric COA with specific ppb values from a named accredited lab. Hoshino Seichaen has not published equivalent numeric results. No public testing statement has been found for Hoshino Seichaen as of the last verification date.
Origin and Sourcing
Hoshino Seichaen sources from Japan. Bryan Johnson Blueprint has not publicly disclosed a specific leaf origin region. Origin cannot be fully compared.
Which Should You Buy?
If testing transparency is your priority: Bryan Johnson Blueprint (Tier 1) discloses more than Hoshino Seichaen (Unrated). If price per gram is your priority: Bryan Johnson Blueprint is the more affordable option at $1.10/g. If organic certification matters to you: Hoshino Seichaen holds ORGANIC certification. Bryan Johnson Blueprint does not have a publicly confirmed organic certification.
Frequently Asked Questions
Is Bryan Johnson Blueprint or Hoshino Seichaen cheaper?
Bryan Johnson Blueprint is cheaper at $1.10/g vs $2.25/g per gram, a difference of $1.15/g. Prices verified as of 2026-06.
Does Bryan Johnson Blueprint publish lab results?
Yes. Bryan Johnson Blueprint publishes a numeric Certificate of Analysis with specific ppb values from a named accredited lab. Verified June 21, 2026.
Does Hoshino Seichaen publish lab results?
No public testing statement or COA has been found for Hoshino Seichaen as of June 27, 2026.
Which is third-party tested: Bryan Johnson Blueprint or Hoshino Seichaen?
Bryan Johnson Blueprint is third-party tested. Hoshino Seichaen does not have a confirmed third-party testing status as of the last verification date.
Is Bryan Johnson Blueprint or Hoshino Seichaen organic?
Hoshino Seichaen holds ORGANIC certification. Bryan Johnson Blueprint does not have a publicly confirmed organic certification as of the last verification date.
Related comparisons
All data in this comparison is sourced from publicly available COAs, brand websites, and independent test results. Every safety data point carries its source and last-verified date. Steady Matcha does not conduct or claim ownership of third-party test results for other brands. Brand information changes: verify current status before purchasing.