FAQs

Frequently Asked Questions

Everything You Need To Know — From Beginner To Expert

All products offered by Fueled By Science Co. are strictly intended for research purposes only and are not approved for human consumption. Always consult a licensed medical professional before beginning any peptide or compound protocol.

A peptide is a short chain of amino acids the building blocks of protein that acts as a biological signaling molecule in the body. Peptides communicate with cells, tissues, organs, and biological systems to trigger specific responses such as hormone release, tissue repair, fat metabolism, immune activation, and much more. They are naturally occurring in the human body and are among the most precisely targeted compounds in modern research science.

Unlike anabolic steroids or synthetic hormones that directly replace or overwhelm your body's natural hormonal systems, most research peptides work by stimulating your body's own biological processes. They act as signals rather than substitutes telling your body to produce more of what it already knows how to make, rather than bypassing its natural intelligence entirely. This fundamental difference is what makes peptides such an exciting and rapidly growing area of research.

The peptides we offer have been extensively studied in research settings and generally demonstrate favorable safety profiles compared to many conventional pharmaceutical compounds. However it is absolutely critical to emphasize that all products offered by Fueled By Science Co. are for research purposes only. Individual responses can vary significantly and the guidance of a licensed medical professional is always essential before beginning any research protocol.

The primary difference is size and chain length. Peptides are short chains typically consisting of 2 to 50 amino acids while proteins are longer more complex chains of 50 or more amino acids. Peptides are generally smaller, more bioavailable, and more targeted in their biological activity than full proteins.

Most peptides are degraded by digestive enzymes in the gastrointestinal tract before they can reach systemic circulation when taken orally meaning they would be broken down before they could produce any meaningful effect. Subcutaneous or intramuscular injection bypasses this degradation and delivers the peptide directly into circulation for maximum bioavailability. Some peptides such as BPC-157 have been researched in oral form for targeted gut effects specifically. Always research the most appropriate administration route for each specific compound.

A research protocol refers to the structured plan governing how a research compound is used including dosage, frequency of administration, duration of use, and any cycling or stacking considerations. Establishing a clear and well informed protocol before beginning any peptide research is essential for both safety and effectiveness.

Most peptides are shipped as a lyophilized freeze dried powder in sterile sealed vials. This form provides maximum stability and shelf life during shipping and storage. The powder must be reconstituted with bacteriostatic water before use. Some compounds such as NAD+ and Glutathione may arrive in different forms depending on the specific product.

Peptides in their reconstituted liquid form are significantly less stable than in their lyophilized powder state. Shipping peptides as freeze dried powder ensures they maintain their structural integrity, potency, and purity during transit regardless of temperature fluctuations that may occur during shipping.

When your order arrives you should:

Inspect all vials carefully for any damage, cracks, or compromised seals

Check that the lyophilized powder appears white to off white and is intact

Transfer vials to proper storage immediately upon receipt

Do not leave peptide vials at room temperature for extended periods

Document your receipt date for tracking purposes

Shipping times vary depending on your location and the shipping method selected at checkout. All orders are shipped with tracking through Shippo so you can monitor your package every step of the way. You will receive tracking information as soon as your order ships.

This is one of the most critical aspects of peptide research and proper storage directly impacts potency and effectiveness.

Lyophilized Unreconstituted Powder Storage:

Store in a refrigerator between 36°F and 46°F, 2°C to 8°C for short to medium term storage

For long term storage of 6 months or more freeze at 14°F to -4°F,  -10°C to -20°C

Keep vials away from direct light UV exposure degrades peptide integrity

Store vials upright in a cool dark environment such as the back of your refrigerator

Avoid storing near the refrigerator door where temperature fluctuations are greatest

Keep vials in their original sealed state until ready for reconstitution

Never expose lyophilized peptides to excessive heat or humidity

Properly stored lyophilized peptides can maintain potency for 12 to 24 months or longer depending on the specific compound

Reconstituted Liquid Peptide Storage:

Always store reconstituted peptides in the refrigerator between 36°F and 46°F,  2°C to 8°C

Never freeze a reconstituted peptide freezing the liquid form can permanently damage the peptide structure

Keep vials away from direct light at all times consider wrapping in foil for additional protection

Most reconstituted peptides maintain stability for 28 to 30 days when properly refrigerated

Some peptides such as BPC-157 and GHK-Cu may maintain stability slightly longer always research specific compound guidelines

Use a new sterile needle every time you draw from your vial to prevent contamination

Never shake a reconstituted peptide vial gently swirl if mixing is needed

Label your reconstituted vials with the reconstitution date so you can track their usability window

Briefly and unavoidably, yes. Extended room temperature exposure particularly above 77°F, 25°C can significantly degrade peptide potency and structural integrity. Always return vials to refrigeration as quickly as possible after drawing your dose. If a reconstituted peptide has been left at room temperature for more than a few hours it is generally advisable to discard it to ensure research integrity.

Yes with proper precautions. When traveling:

Use an insulated cooler or mini fridge travel case to maintain cold chain

Keep peptides out of checked luggage where temperature control is unreliable

Consider traveling with lyophilized unreconstituted vials when possible for greater stability

Use ice packs designed for medication transport to maintain appropriate temperature

Reconstitute upon arrival at your destination when possible for maximum freshness

Brief temperature excursions during shipping are generally tolerable for lyophilized peptides due to their freeze dried stability. However if a package has been exposed to extreme heat for extended periods such as sitting in a hot mailbox for hours it is advisable to contact us immediately. Lyophilized peptides are significantly more resilient to shipping temperature variations than reconstituted liquids.

Reconstitution is the process of adding a sterile liquid typically bacteriostatic water to the lyophilized peptide powder to create a stable liquid solution ready for research use. This is a critical step that must be performed correctly to preserve peptide integrity and ensure accurate dosing.

Before reconstituting any peptide ensure you have the following:

The peptide vial containing lyophilized powder

Bacteriostatic water BAC water for reconstitution

Insulin syringes typically U100 for drawing and administering

Larger gauge needle or reconstitution needle for drawing BAC water

Alcohol swabs 70% isopropyl alcohol

A clean flat sterile surface

Sharps disposal container

Gloves recommended for sterile technique

Bacteriostatic water BAC water is sterile water containing 0.9% benzyl alcohol which prevents bacterial growth in the vial after reconstitution. This is critically important because it allows your reconstituted peptide to remain stable and safe for research use over multiple draws across days or weeks. Never use regular tap water, distilled water, or plain sterile water for peptide reconstitution as these do not prevent bacterial contamination between uses.

Follow these steps carefully for proper reconstitution:

Step 1: Gather all supplies and wash hands thoroughly or put on clean gloves

Step 2: Wipe the rubber stopper of both the peptide vial and the BAC water vial with a fresh alcohol swab and allow to air dry for 30 seconds

Step 3: Draw the desired amount of bacteriostatic water into your syringe slowly and carefully

Step 4: Insert the needle through the rubber stopper of the peptide vial at an angle

Step 5: Slowly inject the BAC water down the side of the vial never directly onto the powder to prevent foaming and peptide degradation

Step 6: Remove the needle and gently swirl never shake the vial until the powder is completely dissolved

Step 7: The solution should appear clear to slightly yellow depending on the compound cloudiness or visible particles may indicate contamination or degradation

Step 8: Label the vial immediately with the compound name, concentration, and reconstitution date

Step 9: Store in the refrigerator immediately and away from direct light

The amount of BAC water used determines the concentration of your reconstituted solution and therefore directly impacts your dosing calculations. This is one of the most important calculations in peptide research. A common and beginner friendly standard is:

1mg peptide vial: Add 1ml BAC water = 1mg per ml — 10mcg per unit on U100 syringe

2mg peptide vial: Add 2ml BAC water = 1mg per ml — 10mcg per unit on U100 syringe

5mg peptide vial: Add 2ml BAC water = 2.5mg per ml — 25mcg per unit on U100 syringe

10mg peptide vial: Add 2ml BAC water = 5mg per ml — 50mcg per unit on U100 syringe

Always confirm your specific concentration calculation before drawing any dose. When in doubt use less BAC water for a more concentrated solution to minimize injection volume.

Accurate dosing calculation is essential for research integrity. Here is a simple formula:

Desired dose in mcg ÷ Concentration in mcg per ml = Volume to draw in ml

Then multiply by 100 to convert ml to units on a U100 insulin syringe.

Example:

Peptide vial: 5mg — 5000mcg

BAC water added: 2ml

Concentration: 2500mcg per ml

Desired dose: 250mcg

Calculation: 250 ÷ 2500 = 0.1ml = 10 units on a U100 syringe

Always double check your calculations before every draw. Consider keeping a research log to track your doses, dates, and observations consistently.

A properly reconstituted peptide solution should appear:

Clear to very slightly yellow or colorless depending on the specific compound.

Free of any unusual odor

If your solution appears cloudy, has visible floating particles, or has changed color significantly discard it immediately as it may be contaminated or degraded

Microdosing refers to administering smaller than standard doses of a compound often to assess individual tolerance, sensitivity, and response before progressing to full research doses. It is a widely used approach in peptide research particularly for beginners and for compounds with more pronounced physiological effects. Starting low and progressing gradually is always the most responsible research approach.

Cycling refers to structured periods of use followed by planned breaks. For example a common cycle might involve 8 to 12 weeks of active research followed by a 4 week break before resuming. Cycling helps prevent receptor desensitization, supports the body's natural hormonal balance, and allows researchers to assess results objectively between protocols. Specific cycling recommendations vary significantly between different compounds.

Stacking refers to combining two or more research peptides simultaneously to achieve synergistic or complementary effects. For example combining Ipamorelin with Sermorelin creates a powerful synergistic growth hormone optimization stack. Combining NAD+ with MOTS-c and SS-31 creates a comprehensive mitochondrial energy and protection protocol. Stacking requires a thorough understanding of each compound's mechanism of action and potential interactions.

Body Composition Stack: Tirzepatide or Retatrutide + Lipo-C

Growth Hormone Stack: Sermorelin + Ipamorelin

Healing & Recovery Stack: BPC-157 + GHK-Cu

Mitochondrial Energy Stack: NAD+ + MOTS-c

Cognitive Performance Stack: Semax + Selank

Skin & Aesthetic Stack: GHK-Cu + Glutathione + SNAP-8

Comprehensive Anti-Aging Stack: NAD+ + SS-31 + Glutathione + Sermorelin

Yes. Planned breaks between research cycles are generally considered best practice in peptide research for several important reasons:

Prevents receptor downregulation and desensitization

Allows assessment of baseline function between protocols

Supports the body's natural hormonal and biological rhythms

Provides an opportunity to evaluate results and adjust protocols accordingly

Reduces the potential for any cumulative side effects over extended periods

Side effects vary significantly between different peptides and individual researchers. Some of the most commonly reported observations in research include:

Injection site reactions: mild redness, swelling, or irritation at the injection site

Water retention: particularly with growth hormone stimulating peptides in early protocols

Fatigue or lethargy: commonly reported during initial adjustment periods

Nausea: particularly with GLP-1 receptor agonist compounds at higher doses

Headache: reported with some nootropic and neurological peptides

Flushing: occasionally reported with certain compounds

Vivid dreams: commonly reported with growth hormone stimulating peptides

Most initial side effects resolve as the body adjusts to the research protocol. Always consult a licensed medical professional if any concerning symptoms arise.

Certain combinations require careful consideration and professional guidance. In general:

Combining multiple GH stimulating peptides requires careful dose management to avoid excessive GH elevation

Combining multiple GLP-1 or metabolic peptides requires careful monitoring of blood sugar and appetite

Always research potential interactions between any compounds before combining them

Consulting a licensed medical professional before stacking any compounds is always the most responsible approach

Peptide research may not be appropriate for everyone. Extra caution and professional medical guidance is particularly important for:

Pregnant or breastfeeding individuals

Those with active cancer or a history of hormone sensitive cancers

Individuals with uncontrolled diabetes or significant metabolic disorders

Those with known allergies to any compound ingredients

Individuals currently taking medications that may interact with research compounds

Those with compromised kidney or liver function

Minors under 18 years of age

Results and timelines vary significantly between compounds and individual researchers. General indicators that a research protocol may be producing effects include:

Improved sleep quality and depth  particularly with GH peptides

Changes in body composition fat loss and lean mass improvements

Improved energy levels and reduced fatigue

Enhanced recovery from physical activity

Improvements in skin quality, texture, and firmness

Cognitive improvements including focus, clarity, and memory

Mood improvements and improved emotional resilience

Keeping a detailed research log tracking these observations is strongly recommended for accurate assessment.

If you experience any concerning adverse reaction during a research protocol:

Discontinue use of the compound immediately

Seek medical attention if symptoms are severe or concerning

Document everything including compound name, dose, timing, and symptoms

Contact us so we can assist and document the observation

Do not resume research without consulting a licensed medical professional

For subcutaneous administration the most commonly used syringes in peptide research are:

U100 Insulin Syringes: 1ml capacity with 100 unit markings ideal for precise dosing

28 to 31 gauge needles: finer gauge means less discomfort at injection site

Half inch needle length: appropriate for subcutaneous injections in most individuals

Always use a fresh sterile syringe for every single injection without exception

Common subcutaneous injection sites used in research include:

Abdomen:  the area around the navel excluding a 2 inch radius around the belly button most common site

Outer thigh: the lateral aspect of the upper thigh

Upper outer arm: the fatty tissue of the upper arm

Lower back: the fatty tissue of the lower back area

Rotate injection sites regularly to prevent tissue irritation and lipodystrophy

Proper sharps disposal is both a safety requirement and a legal responsibility:

Always use an approved sharps disposal container never dispose of needles in regular trash

Never recap needles with two hands use the single hand scoop method if recapping is necessary

Fill sharps containers only to the fill line indicated never overfill

Contact your local pharmacy, health department, or waste management authority for approved sharps disposal locations in your area

Many pharmacies offer free or low cost sharps disposal programs

Step 1: Clean the injection site with an alcohol swab and allow to air dry completely

Step 2: Pinch a small amount of skin and subcutaneous tissue between your fingers

Step 3: Insert the needle at a 45 to 90 degree angle depending on your body composition

Step 4: Release the pinched skin before injecting slowly depress the plunger

Step 5: Withdraw the needle at the same angle it was inserted

Step 6: Apply gentle pressure with a clean alcohol swab, do not rub

Step 7: Dispose of the used syringe in your sharps container immediately

Absolutely and we cannot emphasize this enough. A detailed research log is one of the most valuable tools in any peptide research protocol. Your log should include:

Date and time of each administration

Compound name and lot number

Dose administered and injection site used

Any observations positive effects, side effects, or notable changes

Sleep quality, energy levels, and mood ratings

Body composition measurements and progress photos

Any other health markers being tracked such as blood pressure or blood glucose

Yes timing can significantly impact results with growth hormone releasing peptides. Research suggests that administering GH peptides:

Before bed is optimal as it aligns with the body's natural nocturnal GH pulse during deep sleep

On an empty stomach at least 2 hours after eating as insulin can blunt GH release

Some protocols include a morning administration as well for additional GH stimulation

Avoid administering immediately after high carbohydrate meals for maximum effectiveness

BPC-157 is one of the most versatile peptides in terms of administration options:

Subcutaneous injection near injury site for localized tissue healing and repair

Intramuscular injection for deeper tissue injuries and muscular concerns

Oral administration specifically researched for gastrointestinal healing and gut health

For systemic effects subcutaneous injection is generally considered most effective

For gut specific research oral administration has demonstrated meaningful results

NAD+ has several administration options each with different considerations:

Intravenous IV infusion considered the most bioavailable delivery method typically administered in clinical settings

Subcutaneous injection a convenient and effective alternative to IV administration

Intramuscular injection another viable option for systemic delivery

Oral supplementation lower bioavailability but still studied for its systemic effects

IV administration is often associated with a flushing sensation that diminishes over time

Result timelines vary significantly between compounds and individuals. General research timelines include:

Acute effects hours to days: Semax, Selank cognitive and mood effects often felt quickly

Short term 2 to 4 weeks: BPC-157 healing effects, Lipo-C energy improvements, NAD+ energy restoration

Medium term 4 to 8 weeks: Sermorelin and Ipamorelin sleep improvements, body composition changes

Long term 8 to 16 weeks: Significant body composition transformation, skin quality improvements, anti-aging markers

Consistency, proper storage, accurate dosing, and healthy lifestyle habits all significantly impact results

This is a question that absolutely requires consultation with a licensed medical professional. Some peptides may interact with medications particularly those affecting hormone levels, blood sugar, blood pressure, or neurological function. Never combine research compounds with prescription medications without professional medical guidance and oversight.

We are here to help guide you through the research landscape. While we cannot provide personalized medical advice we can help you understand the research behind each compound and how different peptides align with different wellness research objectives. Reach out to us directly and let us help you navigate your options.

Yes we offer curated research compound bundles designed around popular and synergistic research protocols. Contact us directly to learn more about our current bundle offerings and any available promotions.

We are not just a vendor. We are a wellness research community built on education, transparency, and genuine passion for what science can do for human health. We stay current with the latest research so you don't have to search alone. We are accessible, knowledgeable, and genuinely invested in your research journey from day one.

All products offered by Fueled By Science Co. are strictly intended for research purposes only and are not approved for human consumption. Always consult a licensed medical professional before beginning any peptide or compound protocol. Fueled By Science Co. assumes no medical responsibility for the use of any research compounds.

📩 Have a question that wasn't answered here? Contact us directly, we are always here to help.