プレシジョン · ペプチド · 日本

Precision from
Within

Yashida-Yutani Corporation Japan

Pharmaceutical-grade peptides, formulated under the strictest supervision of Japanese craftsmanship. Biology's own language — spoken precisely.

≥99.7% Purity Pharmaceutical Grade Formulated in Japan Laboratory Tested
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Precision Peptides ≥99.7% Purity Formulated in Japan Third-Party Tested Pharmaceutical Grade Independent COA Sustainable Packaging Precision Peptides ≥99.7% Purity Formulated in Japan Third-Party Tested Pharmaceutical Grade Independent COA Sustainable Packaging

Philosophy

The Discipline
of Precision

Every Yashida-Yutani vial begins with a single question: would we use it ourselves? Our answer demands more than a certificate — it demands a discipline. Sourcing only from facilities that meet our purity threshold. Releasing each batch only after independent third-party analysis. Shipping every lyophilised vial with documented lot traceability.

Peptides do not override biological processes. They carry precise instructions — using the same signalling vocabulary the body already understands. Nothing foreign is forced into a biological role. This is biological communication, not chemical intervention.

99.7%
Minimum Purity
100%
Batch Tested
COA✓
Every Batch
6pts
Analysis Criteria
"Peptides are precise biological signals — not blunt drugs. They speak the body's own language."
Clinical Results · Yashida-Yutani Japan

Results

Younger
from Inside

Our peptide protocols target the cellular mechanisms of ageing, tissue repair, and metabolic function. The results are not superficial — they originate at the level of biological signalling, delivering transformation that speaks for itself.

  • GLOW Complex — GHK-Cu + BPC-157 + TB500 synergy for skin cellular regeneration and visible radiance
  • KLOW Formula — Multi-compound precision blend targeting collagen architecture and tissue restoration
  • NAD+ Protocol — Cellular energy restoration and mitochondrial support for systemic vitality
  • All protocols are developed under medical supervision with individual outcome tracking

Signature Formulas

Precision Compounded

Each formula is precision-compounded to exact specifications, with verified ratios and independent testing.

GLOW

BPC-157 · GHK-Cu · TB500

The signature skin regeneration complex. Three synergistic peptides work in concert to stimulate collagen synthesis, accelerate cellular repair, and restore tissue architecture from within.

70mg · Pharmaceutical Grade

KLOW

GHK-Cu · TB500 · BPC-157 · KPV

Advanced quadruple-compound formula. Adds KPV's targeted anti-inflammatory signalling to the GLOW foundation, addressing deeper tissue restoration and immune modulation.

80mg · Pharmaceutical Grade

Retatrutide

Triple Receptor Agonist

Next-generation triple agonist targeting GLP-1, GIP, and glucagon receptors simultaneously. The most advanced metabolic signalling peptide available for research protocols.

40mg · 60mg · Pharmaceutical Grade

NAD+

Nicotinamide Adenine Dinucleotide

The cellular energy coenzyme. Supports mitochondrial function, DNA repair mechanisms, and sirtuin activation. A foundational molecule in longevity research protocols.

500mg · 1000mg · Pharmaceutical Grade

Wolverine

BPC-157 · TB-500

The tissue repair dual-stack. BPC-157's systemic healing properties combined with TB-500's actin-binding and regenerative signalling capacity. Precision recovery protocol.

20mg · Pharmaceutical Grade

SS-31

Szeto-Schiller Peptide

Cardioprotective mitochondria-targeting peptide. Selectively accumulates in the inner mitochondrial membrane, reducing oxidative stress and preserving cellular energy production.

50mg · Pharmaceutical Grade

Methodology

From Source
to Vial

Our four-stage discipline ensures that every peptide reaching you carries the integrity it held in our laboratory.

01

Source Selection

Peptides sourced exclusively from facilities meeting our purity threshold. No exceptions, no compromises.

02

Batch Analysis

Every batch undergoes independent third-party analysis: identity, purity, sterility, endotoxin, and residual solvents.

03

Aseptic Formulation

All peptides are lyophilised under aseptic conditions in sealed glass vials, preserving molecular integrity from production to use.

04

Traceability

Every vial carries a lot number linked to an independent Certificate of Analysis, accessible via QR code.

Full Catalog

Research Range

Quality Standard

The Only
Standard

Purity is not a claim at Yashida-Yutani — it is a documented fact for every batch we release. Each lot is tested independently before any vial is shipped, with full documentation available on demand.

Identity
HPLC & mass spectrometry confirmation of peptide sequence and molecular weight.
Sterility
Aseptic manufacturing environment with full sterility testing per USP standards.
Endotoxin
LAL testing to confirm endotoxin levels below pharmaceutical threshold.
Residuals
Residual solvent analysis ensuring safety for research-grade application.
≥99.7
Percent Purity — Every Batch

Independent Certificate of Analysis
available at yashida-yutani.com/coa

Reconstitution Guide

Prepare Your Vial

All Yashida-Yutani peptides are lyophilised — freeze-dried powder in sealed glass vials. They must be reconstituted with bacteriostatic water before use. Follow these steps under the guidance of your healthcare professional.

01
Prepare your workspace

Wash hands thoroughly. Lay all materials on a clean, flat surface: peptide vial, BAC water vial, insulin syringe (1ml), and alcohol swabs.

02
Disinfect both septa

Wipe the rubber stopper of both the peptide vial and the BAC water vial with a fresh alcohol swab. Allow 10 seconds to dry before puncturing.

03
Draw diluent

Insert the syringe into the BAC water vial and withdraw the volume your healthcare professional specified. The calculator on the right will determine the correct volume for your dose.

04
Add water along the glass wall

Insert the needle into the peptide vial and slowly guide the water down the inner glass wall — never directly onto the powder. This prevents foaming and peptide degradation.

05
Swirl gently — never shake

Roll the vial gently between your palms until the powder dissolves. The solution should be clear. Shaking fragments the peptide chain and degrades potency.

06
Inspect & label

The solution must be clear and colourless. Discard immediately if cloudy or discoloured. Write the reconstitution date on the vial.

07
Injection — subcutaneous

Swab the injection site (abdomen, outer thigh, or flank). Pinch the skin, insert the insulin needle at 45°, depress slowly. Rotate injection sites at each use.

08
Store reconstituted vial

Refrigerate at 2–8°C between uses. Reconstituted peptides remain stable for 4–6 weeks refrigerated. Discard if any turbidity appears.

Dosage Calculator
Reconstitution & Syringe Guide
2.0 ml
mcg
Select a peptide to see results
For guidance only. Always confirm your dosage and protocol with a qualified healthcare professional before administration.

Research Protocols

Suggested Protocols

All protocols are based on subcutaneous (SubQ) injection using a 100UI insulin syringe. These parameters are informational only and must be reviewed and approved by your physician before use.

ご注文・お問い合わせ

Begin Your
Protocol

Each order is handled with the same precision as our formulations. Our team is available to guide protocol selection with your healthcare professional.

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© 2026 Yashida-Yutani Corporation Japan · yashida-yutani.com

support@yashida-yutani.com

These products are intended for research purposes and use under the guidance of a qualified healthcare professional only. They do not constitute individual therapeutic recommendation and are not approved for self-administration without medical supervision. This website does not constitute medical advice. Always consult a qualified healthcare professional before beginning any peptide protocol. © Yashida-Yutani Corporation Japan.