New & sealed · Ships from the USA
Kirkland Minoxidil 5% — genuine, sealed, delivered fast
Genuine Kirkland Signature Minoxidil 5% Topical Solution for Men — the over-the-counter hair regrowth treatment for men with vertex hair loss. Sold new and sealed in full manufacturer packaging, with fast dispatch and US-only shipping.
US shipping, US seller
Every order ships from within the United States. We ship to US addresses only.
New & sealed
Sold new and sealed in full manufacturer packaging, with the complete Drug Facts label.
Fast dispatch
Orders are packed and handed to the carrier quickly — typically within one business day.
Choose your supply
Every option is the same genuine product: Kirkland Signature Minoxidil 5% Topical Solution for Men, 2 fl oz (60 mL) bottles, new and sealed. Continued use is necessary per the label — larger supplies cost less per bottle.
Kirkland Signature Hair Regrowth Treatment for Men, 5% Minoxidil Topical Solution — 6-Month Supply (6 × 2 fl oz)
Six sealed 2 oz bottles of extra-strength, unscented Kirkland Signature Minoxidil USP 5%. Same active ingredient as Men's Rogaine Extra Strength.
Kirkland Signature Hair Regrowth Treatment for Men, 5% Minoxidil Topical Solution — 12-Month Supply (12 × 2 fl oz)
A full year of extra-strength Kirkland Signature Minoxidil USP 5% — two sealed 6-packs. Best value per bottle.
Kirkland Signature Hair Regrowth Treatment for Men, 5% Minoxidil Topical Solution — 18-Month Supply (18 × 2 fl oz)
Eighteen months of extra-strength Kirkland Signature Minoxidil USP 5% — three sealed 6-packs. Our lowest price per bottle.
Minoxidil 5% is for men only. Use only as directed on the Drug Facts label. Not for sudden or patchy hair loss, or hair loss of unknown cause.
Before you buy
Straight answers from the manufacturer's label — how to apply it, how long a bottle lasts, and what results actually look like.
How to use Kirkland Minoxidil 5%: the directions, step by step
The exact application directions from the Drug Facts label — how much, how often, where to apply, and the mistakes that waste product.
How much minoxidil do I need? 6, 12 or 18-month supply
One 2 fl oz bottle lasts about a month at the labeled dose. Here's how to work out the supply that fits, and what each option costs per bottle.
Kirkland Minoxidil vs Rogaine: what's actually different?
Both are 5% minoxidil topical solutions for men. Here's what the labels have in common, where they differ, and why the price gap exists.
Minoxidil results timeline: what the label says to expect
Results may appear at 2 months, and some men need 4 months. Early shedding is expected. Here's the timeline straight from the manufacturer's leaflet.
Where to buy Kirkland Minoxidil 5% in the US
Costco caps purchases and stock moves. Here are the ways to buy Kirkland minoxidil in the US, what each costs, and how to spot repackaged product.
Minoxidil 5% side effects: what the label warns about
Scalp irritation, unwanted facial hair, and the symptoms that mean stop and call a doctor — the warnings section of the Drug Facts label, explained.
Minoxidil liquid vs foam: which should you use?
Same active ingredient, different vehicle. How the solution and the foam differ on drying time, application, and scalp irritation.
Minoxidil shedding: why hair falls out when you start
The leaflet says shedding may increase for up to two weeks after starting. Here's what that means, how long it lasts, and when to see a doctor.
Does Kirkland Minoxidil expire? Shelf life and storage
Where to find the expiration date on the carton, whether a 12 or 18-month supply will outlast it, and how to store bottles properly.
Is Kirkland Minoxidil legit? How to verify what you're buying
Kirkland Signature is Costco's own FDA-regulated store brand. Here's how to confirm a seller is shipping genuine, sealed, in-date product.
Frequently asked questions
Is this genuine Kirkland Signature minoxidil?
Yes. We sell genuine Kirkland Signature Minoxidil 5% Topical Solution for Men, purchased wholesale and sold new and sealed in full manufacturer packaging. Every carton includes the manufacturer's complete Drug Facts label.
Who is minoxidil 5% topical solution for?
It is an over-the-counter hair regrowth treatment for men, for hair loss at the top of the scalp (vertex only). It is not for use by women, anyone under 18, or people whose hair loss is sudden, patchy, or of unknown cause. Read the Drug Facts label and use only as directed.
How long until I see results?
Per the product label, hair regrowth takes time. Results may occur at 2 months with twice-a-day use, and some men need at least 4 months of use. Continued use is necessary to keep regrowth. Individual results vary, and the label advises stopping and asking a doctor if you see no regrowth after 4 months.
Do you ship internationally?
No. We ship to US addresses only, and checkout will only accept a United States shipping address.
How fast do orders ship?
Orders are typically dispatched within one business day and arrive via tracked US carriers. You'll receive tracking by email from our payment processor once your order ships.
What are the expiration dates like?
We stock fresh inventory and ship sealed cartons with the manufacturer's printed expiration dates, always with comfortable shelf life remaining. If you have a question about a specific lot, contact us before ordering.
What is your return policy?
Because this is an over-the-counter drug product, we can only accept returns of unopened, sealed packages within 30 days of delivery. See our Returns & Refunds page for details.