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For couples preparing for pregnancy
Sperm development takes roughly 74 days. SIRE I gives men a simple daily nutritional routine designed for the months leading up to trying.
Full 90-day routine
3 bottles · 90-day supply
$224.85 when three 1-month supplies are purchased individually
Approximately $2.00/day
No subscription required. Shipping & taxes at checkout
$159.95 USD today and every 3 months until cancelled.
Manage or cancel your subscription using the links in your order confirmation email. Read terms
Planning to try in the next few months?
Sperm development takes roughly 74 days. The months before conception are part of the preparation period—not just the day a couple starts trying. SIRE I is designed as a 90-day routine for that reason.
Start the 90-Day ProtocolA shared beginning
Her preparation
His preparation
For many couples, her preparation already has a routine. His doesn't.
SIRE I gives his side one straightforward daily step.
Why SIRE I
Designed around men’s reproductive health, rather than adapted from a prenatal product.
A sustained preparation routine that spans the male reproductive development cycle.
Vitamins, minerals, antioxidants, and a botanical, with amounts disclosed on the label.
Manufactured in a GMP-certified facility and third-party tested for purity and potency.
The label, in full
A fully disclosed formula. Every listed ingredient and amount, ready to inspect before you decide.
Take 3 capsules daily with food and water, or as directed by a qualified healthcare professional.
Amounts transcribed from the current SIRE Supplement Facts panel.
Other ingredients: gelatin capsule, magnesium stearate, silicon dioxide.

Visible standards
SIRE I’s product specification states that it is third-party tested for purity and potency.
Manufactured in a GMP-certified facility, as stated in the product information and on the label.
The SIRE I label identifies the product as USA made and non-GMO.
A specific purpose
General-purpose nutrition has a different starting point. SIRE I is built around preconception preparation.
| SIRE I | General men’s multivitamin | |
|---|---|---|
| Preconception focus | Yes | Typically general wellness |
| 90-day preparation approach | Yes | Typically no |
| Third-party tested | Yes | Varies by product |
General-purpose products vary. Compare the label and intended use of any product you are considering.
Time. Consistency. Preparation.
Sperm development takes roughly 74 days. SIRE I is built around sustained preparation over that period, rather than a last-minute intervention.
Make daily nutrition part of his preparation.
The approximate time sperm take to develop.
Finish the recommended SIRE I routine.
Timing is approximate and varies between individuals. This timeline describes a preparation routine, not a promised result. Read the timing reference ↗
Start the 90-Day ProtocolMake a plan for his side
A full 90-day routine. One straightforward daily step. A deliberate place to begin.
Full 90-day routine
3 bottles · 90-day supply
$224.85 when three 1-month supplies are purchased individually
Approximately $2.00/day
No subscription required. Shipping & taxes at checkout
Clear terms, before you buy
Request a return within 30 days of receiving your order. Items must be unused, in their original packaging, and accompanied by proof of purchase. Contact SIRE before sending anything back. Sale items and gift cards are excluded; see the full policy for all eligibility requirements.
Read the full Return & Refund PolicySperm development takes roughly 74 days. Starting before trying makes room for a consistent nutritional routine during the preparation period.
A 90-day supply spans the approximate 74-day development cycle. It is a practical preparation routine, not a deadline for a biological result.
Take 3 capsules daily with food and water, or as directed by a qualified healthcare professional. Each bottle contains 30 servings.
Yes. The 1-month option is a 30-day supply, purchased once. Use “Try 1 Month” beneath any protocol offer.
No. “Start the 90-Day Protocol” adds the 3-month supply as a one-time purchase. There is no recurring billing.
Contact SIRE with questions. The current return policy covers unused items in their original packaging within 30 days of receipt, with proof of purchase. Read the policy for full eligibility and instructions.
The SIRE I label states that it is made in the USA in a GMP-certified facility.
Manufacturing claims are shown on the product label. FDA facility registration does not mean FDA approval of this supplement.
It means testing is performed by an outside party. SIRE’s current product information states that the formula is third-party tested for purity and potency.
No. SIRE is a dietary supplement intended to provide nutritional support. It is not intended to diagnose, treat, cure, or prevent disease.
Yes. Open “Prefer automatic delivery?” in the first offer to see the current recurring price and terms. Subscription is optional and must be chosen explicitly.
See the subscription option →Prepare together
If you're planning to try in the next few months, his preparation window is already beginning. Give his side a simple 90-day routine.
Full 90-day routine
3 bottles · 90-day supply
$224.85 when three 1-month supplies are purchased individually
Approximately $2.00/day
No subscription required. Shipping & taxes at checkout