Royal Peptides products are offered exclusively for laboratory research, analytical, and scientific applications. Not for human or veterinary use.
01Research Product Information
Royal Peptides supplies compounds intended for controlled laboratory research and analytical applications.
- For research and analytical use only
- Not intended for human consumption or administration
- Not intended for veterinary use
- Not represented as a drug, medicine, or therapeutic product
- Laboratory researchers are responsible for appropriate protocols and controls
02Lyophilized Product Format
Where applicable, Royal Peptides research materials are supplied in lyophilized form.
Lyophilization is a freeze-drying process used to remove moisture from material under controlled conditions.
- Material appearance may differ between compounds and production lots
- Lyophilized material may appear as a cake, film, or fragmented material
- The quantity of visible material may appear small relative to vial size
- Visual appearance alone does not establish identity or purity
03Storage & Laboratory Handling
Storage requirements may vary by compound, formulation, and production lot. Refer to the product label and available product-specific documentation.
- Protect research materials from excessive heat
- Limit unnecessary exposure to direct light and moisture
- Keep containers securely closed when stored
- Follow product-specific temperature requirements when provided
- Use appropriate laboratory contamination-control procedures
04Packaging & Quality Documentation
Packaging components may vary slightly between production lots. This can include vial closures, cap styles, label positioning, and external packaging.
- Check the product label and lot identifier before laboratory use
- Inspect the vial and closure for visible shipping damage
- Packaging design may differ between batches
- Lot-specific analytical documentation may be available in our COA library
SIL 50mg + TAD 20mg Blend – 100Tablets
SIL 50mg TAD 20mg – 100 Dual PDE5 Research Tablets
SIL 50mg TAD 20mg ships from U.S. stock at Royal Peptides – 100 Dual PDE5 Research Tablets, with a lot-matched COA. This research tablet combines two PDE5 inhibitors: sildenafil 50mg, with its short onset, and tadalafil 20mg, with its long half-life, for comparative pathway studies.
Research Use Only
Not for human or veterinary use, administration, ingestion, injection, compounding, diagnostic, therapeutic, clinical, or personal use.
Order Online
Buy SIL 50mg TAD 20mg Online
Pick your strength with the selector at the top of this page and add SIL 50mg TAD 20mg to your cart. Prices are per unit or per kit as shown, and every order ships with lot documentation.
Need larger quantities of SIL + TAD? Kits and wholesale boxes lower the unit price; see our wholesale research peptides options.
01
Compound Profile
What Is SIL + TAD?
This research tablet combines two phosphodiesterase-5 (PDE5) inhibitors: sildenafil 50mg, with its fast onset and short half-life, and tadalafil 20mg, with its much longer half-life.
Having both in one standardized tablet simplifies comparative PDE5-pathway work, from enzyme-inhibition assays to vascular smooth-muscle models.
02
Research Context
SIL + TAD Research Areas
SIL + TAD appears in the scientific literature across several research areas. These describe laboratory investigation, not intended uses of this product.
PDE5 Inhibition Assays
Enzyme kinetics comparing short- and long-acting inhibitors.
cGMP Signaling
Nitric oxide / cGMP pathway models in smooth-muscle tissue.
Pharmacokinetic Contrast
Half-life and onset differences between the two components.
Vascular Research
Endothelial and pulmonary vascular models.
03
Quality Documentation
Lot Testing & COA
Every lot of SIL 50mg TAD 20mg is independently tested before release, and results are listed with our coas peptides. You can also review published SIL + TAD research on PubMed.
- Compound identification
- Production lot reference
- Declared quantity per unit
- Purity by HPLC where applicable
- Identity by mass spectrometry where applicable
- Certificate of analysis per lot
04
Laboratory Protocol
Handling & Storage
Handle SIL + TAD with standard laboratory practice.
Storage
Keep SIL + TAD sealed in its original bottle, dry, below 25°C and away from direct light.
Handling
Record the lot number on receipt and keep bottles closed between sampling to limit moisture uptake.
05
Related Research
Researchers Also Order
Compounds often studied alongside SIL + TAD:
Why Royal Peptides
Why Researchers Order From Us
What you get with every order, whichever compound you choose:
Published COAs
Certificates of analysis are public and searchable by lot, not hidden behind a request form.
Consistent Supply
Popular compounds are kept in stock so ongoing studies are not interrupted.
Secure Checkout
Several payment options, with step-by-step guides for Cash App and crypto payments.
Responsive Team
Order, COA and wholesale questions answered by email or text within one business day.
06
Research FAQ
SIL 50mg TAD 20mg Questions
What does SIL 50mg TAD 20mg contain?
Each tablet combines 50mg sildenafil and 20mg tadalafil; there are 100 tablets per bottle.
Why combine two PDE5 inhibitors?
It allows comparative research on onset and duration within one standardized material.
How are the tablets stored?
Sealed, dry, at room temperature and away from light.
Is this for human use?
No. Research use only.
Where can I buy SIL 50mg TAD 20mg?
You can buy SIL 50mg TAD 20mg directly from Royal Peptides. Pick a format above, check out securely, and your order ships from U.S. stock with lot documentation.
How fast do orders ship?
Orders are packed and dispatched from U.S. inventory, usually within one business day, with tracking provided.
SIL + TAD for Laboratory Research
SIL 50mg TAD 20mg is supplied for laboratory research use only. It is not for human or veterinary use, and nothing on this page is medical advice.
Specifications
Product information pulled directly from WooCommerce.
No published specifications for this research material.
COA / Testing
Review available analytical documentation for the applicable product and batch in the COA library.
View COA LibraryShipping & Storage
Shipping options and delivery estimates are shown at checkout. Refer to the product label for storage requirements.
