Renew From Within

Research peptides, verified down to the lot.

High-purity research compounds for the laboratory bench — independently HPLC-MS tested, lyophilized for stability, and dispatched the same day you order before 11:00 AM.

browse the catalog view batch coas

USA

Made in USA

Same day

Dispatch by 11am

100%

Third-party tested

Renew From Within

Research peptides, verified down to the lot.

High-purity research compounds for the laboratory bench — independently HPLC-MS tested, lyophilized for stability, and dispatched the same day you order before 11:00 AM.

browse the catalog view batch coas

99%

Tested purity

Same day

Dispatch by 11am

100%

Third-party tested

HPLC-MS Verified✦
99% Assayed Purity✦
COA With Every Lot✦
Lyophilized for Stability✦
US Sourced & Handled✦
Same-Day Dispatch✦

HPLC-MS Verified✦
99% Assayed Purity✦
COA With Every Lot✦
Lyophilized for Stability✦
US Sourced & Handled✦
Same-Day Dispatch✦

Shop by category

Explore the research catalog

Every compound we carry, grouped by research focus. All lots are HPLC-MS verified and ship with a lot-matched Certificate of Analysis.

Recovery Structural

Recovery and regeneration research peptides including BPC-157 and TB-500.

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GLP1 & Metabolic

GH-secretagogue research lines such as Ipamorelin and CJC-1295.

Browse Category

Growth Hormone

Compounds studied for metabolic and body-composition research models.

Browse Category

Anti-Aging Longevity

Neuro-research peptides including Semax and Selank reference material.

Browse Category

Cognitive & Neuron

Cellular and longevity research lines such as Epitalon and NAD+.

Browse Category

Immune & Inflammatory

Copper-peptide and cosmetic research references led by GHK-Cu.

Browse Category

Melanocortin

Immune-modulation research peptides including Thymosin Alpha-1.

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Blends

Neuro-research peptides including Semax and Selank reference material.

Browse Category

Liquid Sprays

Pre-dissolved research solutions, including Semax and Selank, in sealed spray bottles.

Browse Category

Shop by category

Explore the research catalog

Every compound we carry, grouped by research focus. All lots are HPLC-MS verified and ship with a lot-matched Certificate of Analysis.

Recovery Structural

Recovery and regeneration research peptides including BPC-157 and TB-500.

Browse Category

GLP1 & Metabolic

GH-secretagogue research lines such as Ipamorelin and CJC-1295.

Browse Category

Growth Hormone

Compounds studied for metabolic and body-composition research models.

Browse Category

Anti-Aging Longevity

Neuro-research peptides including Semax and Selank reference material.

Browse Category

Cognitive & Neuron

Cellular and longevity research lines such as Epitalon and NAD+.

Browse Category

Immune & Inflammatory

Copper-peptide and cosmetic research references led by GHK-Cu.

Browse Category

Melanocortin

Immune-modulation research peptides including Thymosin Alpha-1.

Browse Category

Blends

Neuro-research peptides including Semax and Selank reference material.

Browse Category

Liquid Sprays

Pre-dissolved research solutions, including Semax and Selank, in sealed spray bottles.

Browse Category

The TLC Renew Standard

Built for researchers who can’t compromise on purity

Reproducible results start with reference material you can verify. We document every step, from synthesis to the vial that reaches your bench.

Catalog

Reference peptides, in stock

Browse by compound. Each listing offers concentration and multi-pack options, with the lot COA one click away.

Liquid Sprays

Semax Spray

25 mg

$89.00

Anti-Aging Longevity

L-Glutathione

1500 mg

$99.00

Blends

KLOW

80 mg (10/10/10/50)

$129.00

Blends

GLOW

70 mg (10/10/50)

$109.00

Melanocortin

PT-141

10 mg

$49.00

Immune & Inflammatory

KPV

10 mg

$49.00

Liquid Sprays

Semax / Selank Spray

10 mg / 10 mg

$109.00

Cognitive & Neuron

Selank

10 mg

$74.00

Recovery & Structural

TB-500

10 mg

$64.00

Recovery & Structural

BPC/TB

10 mg (5/5)

$79.00

Recovery & Structural

BPC-157

10 mg

$59.00

GLP1 & Metabolic

GLP-2TRZ

10 mg / 30 mg

Price range: $79.00 through $169.00
This product has multiple variants. The options may be chosen on the product page

GLP1 & Metabolic

GLP-R3TA

10 mg / 30 mg

Price range: $89.00 through $179.00
This product has multiple variants. The options may be chosen on the product page

GLP1 & Metabolic

Cagrilintide

10 mg

$129.00

Growth Hormone

Tesamorelin

20 mg

$139.00

Growth Hormone

Ipamorelin

10 mg

$64.00

Growth Hormone

CJC-1295 w/ DAC

5 mg

$89.00

Growth Hormone

CJC-1295 No DAC / IPA

10 mg (5/5)

$79.99

Growth Hormone

Tesa / IPA

9 mg (6/3)

$99.00

Anti-Aging Longevity

L-Glutathione

1500 mg

$99.00

Anti-Aging Longevity

Epithalon

50 mg

$129.00

Anti-Aging Longevity

NAD+

1000 mg

$128.00

Anti-Aging Longevity

GHK-Cu

50 mg

$49.00

Anti-Aging Longevity

MOTS-C

10 mg / 40 mg

Price range: $54.00 through $114.00
This product has multiple variants. The options may be chosen on the product page

Cognitive & Neuron

Semax

10 mg

$64.00

Cognitive & Neuron

Selank

10 mg

$74.00

Immune & Inflammatory

KPV

10 mg

$49.00

Melanocortin

PT-141

10 mg

$49.00

Blends

GLOW

70 mg (10/10/50)

$109.00

Blends

KLOW

80 mg (10/10/10/50)

$129.00

Documentation

Quality you can verify

Every vial is documented from synthesis to your bench. Here is what stands behind the label.

Look up a Coa

Documentation

Quality you can verify

Every vial is documented from synthesis to your bench. Here is what stands behind the label.

Look up a Coa

Research resources

Guidance from the TLC Renew bench

Practical notes on documentation, handling and quality, written for research buyers. Educational only, never medical advice or dosing guidance.

How to read a peptide Certificate of Analysis

What the retention time, mass confirmation and net peptide content actually tell you about a [...]

Storage and reconstitution notes for lyophilized material

Temperature, solvent choice and stability windows that keep your bench data reproducible.

HPLC vs mass spec: what each assay proves

Why purity and identity are two separate questions, and why a supplier should answer both.

Order today, dispatched today

Stock your bench with compounds you can verify

Place your order before 11:00 AM and it leaves the lab the same day. Every compound is backed by a batch Certificate of Analysis — free US shipping over $250.

browse the catalog view batch coas

99%

Tested purity

Same day

Dispatch by 11am

COA

With every lot

Order today, dispatched today

Stock your bench with compounds you can verify

Place your order before 11:00 AM and it leaves the lab the same day. Every compound is backed by a batch Certificate of Analysis — free US shipping over $250.

browse the catalog view batch coas

99%

Tested purity

Same day

Dispatch by 11am

COA

With every lot

Questions

Frequently asked questions

Everything qualified researchers ask before ordering. Still unsure? Our team replies within one business day.

How is purity tested and documented?

Each lot is analysed by an independent laboratory using HPLC and mass spectrometry to confirm identity and purity to a documented 99% standard. Results are published as a lot-specific Certificate of Analysis that you can download by batch number before or after purchase.

In-stock orders placed before 11:00 AM dispatch the same business day; all other in-stock orders leave within 24 hours. Free shipping applies to US orders over $250. Tracking is emailed at dispatch, and packaging is plain and discreet.

Lyophilized peptides are shipped in temperature-stable packaging and should be stored at minus 20 degrees Celsius for long-term stability. Once reconstituted, keep refrigerated and use within the window noted on the product page for best research consistency.

If an independent assay shows a lot below our stated 99% purity, contact us for a full refund or replacement. Unopened, undamaged vials may be returned within 14 days. Opened vials cannot be returned for safety and integrity reasons.

You can check out as a guest, but a free research account unlocks batch COA history, restock alerts, and volume pricing for qualified labs. Account holders also get faster reordering of previously purchased lots.

Stay informed

Restock alerts & new compound releases

Be first to know when sold-out lots return and new reference peptides go live at TLC Renew.


No dosing guidance, no medical claims — restock and documentation updates only.