Semaglutide
4.8 stars • 2,200+ Reviews
Klarna Afterpay

Semaglutide

Compounded semaglutide

$98.00/mo

Microdosing semaglutide activates the GLP-1 pathway at lower doses, reducing side effects and may support longevity protocols.

The exact formulation and dispensing pharmacy depend on clinical review, your state, and current fulfillment availability.

Same price, every dose Fast, free shipping No hidden fees No insurance required
What's included with Third Avenue?
  • Choose from multiple care plan options, with dosing changes when your clinician considers them appropriate.
  • Complete a streamlined online health assessment for review by a licensed physician.
  • Message your care team securely at any time and meet with your physician during scheduled follow-ups.
  • If prescribed, your medication is delivered to your home, so there is no pharmacy pickup.
  • Your plan covers required supplies, delivery, and continued clinical oversight.
How to use your treatment
  • Inject the medication under the skin once a week, preferably on the same weekday, unless your physician tells you otherwise.
  • Follow the gradual dose-escalation plan provided by your clinician to improve tolerability and help limit side effects.
Potential side effects

GLP-1 injections may cause nausea, diarrhea, or vomiting. To help manage symptoms while your body adjusts, eligible patients may add a fast-acting anti-nausea medication.

How it works

Step 1

Free assessment, 100% online

Answer some questions about your health history, lifestyle, and goals via our online medical intake.

Take the assessment
Step 2

Prescription

A licensed medical provider will review your information and determine if medication is right for you.

Find out if I am eligible
Step 3

Free delivery

If prescribed, your medication is cold-shipped directly to your door at no extra cost.

Get started
There has been growing scientific data suggesting that GLP-1 agonists are beneficial for longevity via several mechanisms that are independent from weight loss.
Third Avenue Clinical Team

Third Avenue Clinical Team

Board-certified physicians & researchers

Why GLP-1s

Natural hormone breaks down in minutes. GLP-1s last days.

100% 75% 50% 25% 0% 2 min 1 day 3 day 7 day Active level remaining (% of peak) Time after entering the body ~5,000× longer-lasting
GLP-1s Natural GLP-1

Natural GLP-1 lasts ~2 minutes

Every time you eat, your gut releases a hormone called GLP-1 that signals fullness, triggers insulin release, and slows digestion. An enzyme called DPP-4 destroys it within 1 to 2 minutes.
See sourceSource: Nauck & Meier, European Journal of Endocrinology (2019); Gentilella et al., Diabetes/Metabolism Research and Reviews (2019)

Engineered to last longer

GLP-1 receptor agonists are lab-engineered versions of this hormone, modified to resist DPP-4 breakdown and stay active long enough to sustain appetite control and blood sugar regulation.
See sourceSource: Nauck & Meier, European Journal of Endocrinology (2019); Gentilella et al., Diabetes/Metabolism Research and Reviews (2019)

Sustained effects: minutes to days

The result: half-lives ranging from 2.5 hours to approximately 7 days — up to 5,000 times longer than the natural hormone.
See sourceSource: Nauck & Meier, European Journal of Endocrinology (2019); Gentilella et al., Diabetes/Metabolism Research and Reviews (2019)

Charts and references are illustrative representations intended to communicate published research findings and the known pharmacologic properties of a medication class. They do not establish that any specific formulation or treatment program will produce identical results. Compounded medications are not evaluated by the FDA for safety, quality or efficacy.

How GLP-1 RA works

Semaglutide activates GLP-1 receptors throughout the body.

Semaglutide is a GLP-1 receptor agonist that mimics the GLP-1 hormone produced in the gut. Receptors are located in the brain, gut, heart, and pancreas, where activation supports appetite regulation, blood sugar balance, and metabolic function.

Activates GLP-1 receptors

GLP-1 is a hormone your gut produces naturally, lasting only 1-2 minutes. GLP-1 receptor agonists are engineered to activate the same receptors for days instead of minutes, providing sustained appetite regulation and metabolic support.

Preserves benefits

Research suggests that low-dose semaglutide can activate longevity-relevant pathways including moderate weight loss, glycemic control, and liver health.

Reduces side effects

Side effects from semaglutide are dose-dependent. In clinical trials, dropping from 2.4 mg to 1.0 mg reduced the rate of digestive side effects by 6% (absolute reduction).

Why Third Avenue

Third Avenue
Others

Proactive, doctor-led care

Treatment plans designed around your goals. No wait lists.

Transparent pricing

No membership fees, no hidden costs. Pay only after a doctor prescribes.

Board-certified doctors

Specialist physicians licensed in your state, with unlimited messaging.

Curated by longevity experts

Every protocol is built by medical experts based on longevity research.

Personalized dosing

Titration matched to your goals and tolerance.

What is Semaglutide Microdose?

Low-dose semaglutide is an emerging therapeutic for patients who experience side effects at standard doses. Early research suggests it may preserve the same longevity-relevant mechanisms as higher doses, including glycemic control, liver health, inflammation, and oxidative stress.

How do you take Semaglutide Microdose?

Semaglutide Microdose is available in a weekly injectable form. Your provider will determine which medication and dose is appropriate for you. Always follow instructions from your doctor.

What are the side effects of Semaglutide Microdose?

Higher doses of semaglutide are associated with more side effects. At full dose, the most common side effects are nausea, diarrhea, vomiting, constipation, abdominal pain, headache, and fatigue. Lower doses and slower titration can reduce the frequency of these side effects.

Who shouldn't take Semaglutide Microdose?

Not recommended for people with a personal or family history of medullary thyroid cancer or MEN2. Your doctor will evaluate whether Semaglutide Microdose is appropriate for you.