Kirkland

Signature Minoxidil.

Haircare

About this product

A topical minoxidil solution available at Costco in a six-month supply, designed to help regrow hair and slow hair loss in both men and women.

Guru Score

86%

Yay

3 experts · Moderate agreement

3Gurus

3Yay

0Mixed

0Nay

What they liked

Same active ingredient as brand name versions
Six-month supply at under fifty dollars
Five percent strength option works for women

What they flagged

Nothing. None of the experts who reviewed it raised a problem.

What the gurus are saying

This Kirkland minoxidil works identically to name-brand versions at a fraction of the cost, making it a first-line pick for anyone with a Costco membership. The five percent strength is particularly valuable for women, since the two percent formulations often fall short for them, and dermatologists find it performs just as well as pricier alternatives. At roughly fifty dollars for a six-month supply, it represents the best value in minoxidil available.

Synthesized from 3 expert reviews · most recent take November 2025

Best for

Men

Type

HaircareLiquid

Where to buy

Amazon → Google →

Opens a search for this product. We do not sell anything ourselves.

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored

208SkinDoc

2.09M subs

✓Yay

"Buying a generic brand like the Kirkland brand at Costco is going to give you the same result as the brand name minoxidil."

All 2 takes from 208SkinDoc

The 3 Hidden Reasons Perimenopausal Women Lose Hair (And What You Can Do About It)

"Buying a generic brand like the Kirkland brand at Costco is going to give you the same result as the brand name minoxidil."

Let’s Talk Hair Loss — Causes, Treatments, and Confidence

"I recommend the generic, the store brand, get the bulk at Costco. I find the foam is just messy and hard to use, so typically the liquid in a dropper works a little better and gets right down to the scalp. It's very cheap, the Kirkland brand you can buy on Amazon for about 19 to 30 dollars for a six month supply, so that's the way to go, that's definitely what I usually recommend to my patients, men and women. I personally use minoxidil and have been for eight or nine years now."

Dr. Daniel Sugai

720k subs

✓Yay

"The best deal though price-wise is Costco's Kirkland Signature Minoxidil 5%."

All 2 takes from Dr. Daniel Sugai

Shop with Me: Dermatologist Shops for Affordable Skincare at the Local Grocery Store

"The best deal though price-wise is Costco's Kirkland Signature Minoxidil 5%."

Shocking Rogaine Facts Revealed by a Dermatologist

"When I mentioned minoxidil, the branded form is very common but I do feel like the Costco members should know the Kirkland brand is great. My patients like it and it's actually very affordable. I think you get your best deal with Costco's Kirkland minoxidil."

Dr Dray

2.68M subs

✓Yay

"Just go to Costco and get the Kirkland minoxidil. That would be my first line recommendation."

Top Pick: minoxidil

All 3 takes from Dr Dray

*NEW* SKINCARE DEALS AT COSTCO August 2023 🛍 Dermatologist

"Here they have the Kirkland Minoxidil, we've talked about being a pretty good deal, a six-month supply for 49.99. Now this is marketed for men but women can use the five percent as well, and in fact in many cases it's just more effective than the Rogaine for women, which is two percent, which is like not always super effective for most men, it just doesn't work. It can work for women but a lot of women don't get response from the two percent."

Bryan Johnson's HAIR LOSS REVERSAL SUCCESS

"Just go to Costco and get the Kirkland minoxidil. That would be my first line recommendation."

TOP SKINCARE PRODUCTS AT THE DRUGSTORE | Dermatologist

"It's going to work the same as the name brand stuff. As a matter of fact, I often recommend people if you have a Costco membership, get the Kirkland Signature Minoxidil. It's a very good price point."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Frequently asked.

What is Kirkland Signature Minoxidil?

A topical minoxidil solution available at Costco in a six-month supply, designed to help regrow hair and slow hair loss in both men and women.

Is Kirkland Signature Minoxidil worth it?

Yes. All 3 gurus who reviewed it give it their stamp of approval, for a Guru Score of 86%.

What is Kirkland Signature Minoxidil's Guru Score?

Kirkland Signature Minoxidil holds a Guru Score of 86%. That is our read on how warmly the experts talk about it, based on the verdicts of 3 expert reviewers we have collected. At least one expert has named it a Top Pick in its category.