PrymaLab

PrymaLab Analytical · In-house laboratory

3705 Music Branch Rd, Ashland, KY 41102 · +1 (606) 465-9063 · prymalab.net

Certificate no.

PL-26-00201

Verification key

RGNCXEUL

Scan or enter both at
prymalab.net/testing/verify

Certificate of Analysis · Lot release

GLOW Blend 50 mg/mL Pen

Lot PL-2610-083 · Solution · Label claim 50 mg/mL

Tested in-house by PrymaLab

In-house analytical result,
not an independent third-party test

Lot / batch number

PL-2610-083

Date made

2026-10-02

Date of analysis

2026-10-05

Date issued

2026-10-19

Retest / expiry

2028-10-02

Units in lot / sampled

419 / 2

Storage

—

Certificate type

Lot COA, 2 pages

Compound

GLOW Blend

GHK-Cu + BPC-157 + TB-500 co-lyophilized blend

CAS number

89030-95-5 · 137525-51-0 · 77591-33-4

Molecular formula

—

Theoretical mass (avg.)

401.91 · 1,419.55 · 4,963.44 Da (GHK-Cu / BPC-157 / TB-500)

Composition and sequences

GHK-Cu: GHK-Cu(II) · BPC-157: GEPPPGKPADDAGLV · TB-500: Ac-43-aa Tbeta4

Purity · RP-HPLC, area %

99.52%

Lowest component (TB-500) • specification ≥ 99.0% for every component

Identity · Components Confirmed

3 / 3

Components confirmed by LC-MS within ± 1.0 Da: 401.92 / 1,419.46 / 4,963.24 Da

Overall conclusion

PASS

Meets every specification for the tests performed

Test	Method	Specification	Result	Conclusion
GHK-Cu: purity · largest impurity · mass	RP-HPLC 214 nm (area%); LC-MS, ESI+	≥ 99.0% · ≤ 1.0% · ± 1.0 Da	99.83% · 0.11% · 401.92 Da	PASS
BPC-157: purity · largest impurity · mass	RP-HPLC 214 nm (area%); LC-MS, ESI+	≥ 99.0% · ≤ 1.0% · ± 1.0 Da	99.70% · 0.20% · 1,419.46 Da	PASS
TB-500: purity · largest impurity · mass	RP-HPLC 214 nm (area%); LC-MS, ESI+	≥ 99.0% · ≤ 1.0% · ± 1.0 Da	99.52% · 0.36% · 4,963.24 Da	PASS
Assay (total blend)	Assay vs label claim	47.5–52.5 mg/mL	50.51 mg/mL	PASS
Bacterial endotoxin	LAL, kinetic	≤ 5.0 EU/mg	0.064 EU/mg	PASS
Sterility	USP <71>, 14-day	No growth	No growth	PASS

1HPLC chromatogram

Data file: PL-2610-083-HPLC.raw · Column C18, 150 × 4.6 mm · UV 214 nm

Peak plot drawn from the integrated peak table (area %, log scale); it is not the instrument trace, which is retained in PL-2610-083-HPLC.raw. † Nominal reference retention time for the assigned impurity; the main-peak RT is observed in this lot. Area % is per component (each component main peak + its impurities = 100%).

PrymaLab

Certificate of Analysis · continued

GLOW Blend 50 mg/mL Pen · Lot PL-2610-083 · Certificate PL-26-00201

Lot PL-2610-083

Method, peak table and approval

2HPLC method · PL-2610-083-HPLC.raw

Instrument

Waters Alliance e2695

Data System

Empower 3

Detector

UV absorbance

Detection Wavelength

214 nm

Column

C18, 150 × 4.6 mm, 3.5 µm

Mobile Phase A

0.1% TFA in water

Mobile Phase B

0.1% TFA in MeCN

Gradient

5–95% B over 25 min (linear)

Flow Rate

1.0 mL/min

Column Temperature

40 °C

Injection Volume

10 µL

3Gradient program

Time (min)	% A	% B
0.0	95	5
25.0	5	95

4Peak table

Peak	RT (min)	Area	Area %
1	9.30 †	—	0.04
2	10.65	—	99.83
3	11.40 †	—	0.05
4	11.50 †	—	0.11
5	12.20 †	—	0.02
6	12.20 †	—	0.05
7	13.03	—	99.70
8	13.20 †	—	0.02
9	13.90 †	—	0.20
10	13.90 †	—	0.36
11	14.75	—	99.52
12	15.60 †	—	0.10
Total		—	100.00 per component

Main peaks: 2 GHK-Cu · 7 BPC-157 · 11 TB-500; all other peaks are the assigned impurities of the neighbouring component · area % within each component (main + impurities = 100% per component) · † nominal reference RT · Purity = main peak area ÷ total integrated area × 100, to two decimals; main peak shaded.

5Identity by mass spectrometry

Instrument

Waters SQD

Ionization / Mode

ESI, positive

Deconvoluted Mass

401.92 / 1,419.46 / 4,963.24 Da

Theoretical Mass

401.91 / 1,419.55 / 4,963.44 Da

Order

GHK-Cu / BPC-157 / TB-500

Difference

+0.01 / −0.09 / −0.20 Da

Data File

PL-2610-083-MS.d

Acceptance

Within ± 1.0 Da (each component)

6Additional tests

Test	Performed by	Date	Report / file
Assay vs label claim	PrymaLab Analytical	2026-10-05	—
Endotoxin (LAL, kinetic)	PrymaLab Analytical	2026-10-05	—
Sterility (USP <71>, day-14 read-out)	PrymaLab Analytical	2026-10-19	—

A test with no row here was not performed on this lot. Outside-laboratory reports, when used, are attached and named below.

7Review and approval

D. Reynolds
Analyst · performed the testing
Date: 2026-10-19

S. Calloway
Reviewer · checked against raw data
Date: 2026-10-19

M. Phelps
Lab Director · approved for release
Date: 2026-10-19