Retailer private label · U.S. Brand Intelligence
Kirkland Signature
Kirkland Signature is Costco's own label. Its hair-regrowth products are men's Minoxidil 5% — a topical solution and a topical aerosol foam — sold in multi-month value packs to Costco members.
Last verified: 2026-09-29 (costco.com + DailyMed NDC 63981-032)
What is Kirkland Signature?
The Drug Facts label is the standard men's 5% Minoxidil label: for the top of the scalp (vertex), twice daily, not intended for frontal baldness or a receding hairline, and not for use by women.
Products
| Product | Active | Format | For | Use |
|---|---|---|---|---|
| Kirkland Signature Hair Regrowth Treatment Extra Strength for Men, 5% Minoxidil Topical Solution | Active: Minoxidil 5% | Format: Liquid (dropper), 6 × 2 fl oz pack | For: Men | Use: Twice daily per label |
| Kirkland Signature Hair Regrowth Treatment Minoxidil Foam for Men | Active: Minoxidil 5% | Format: Foam, 6-count pack | For: Men | Use: Twice daily per label |
What sets it apart
- Multi-month value packs (6 bottles or 6 foam canisters)
- Sold to Costco members in warehouses and on costco.com
- Men's 5% only — no women's-labeled Kirkland Minoxidil in current listings
How Kirkland Signature compares with FOLIGAIN®
Both sell OTC Minoxidil. At the same strength the active ingredient is the same; differences are formats, inactive ingredients, pack sizes, price per month and the surrounding range. FOLIGAIN® adds low-alcohol Minoxidil, Minoxidil + TRIOXIDIL® products and coordinated cosmetic hair care.
Frequently asked questions
Does Kirkland Signature contain Minoxidil?
Yes. Kirkland Signature's hair-regrowth products are Minoxidil OTC drug products.
Is Kirkland Signature for men or women?
Kirkland Signature products are offered for men. Always use the product labeled for you.
Do I need a subscription for Kirkland Signature?
Subscription: not required.
References
- Kirkland Signature retailer or brand website. Recheck current listings and the exact package before choosing a variant.
- Search DailyMed (U.S. National Library of Medicine) for Kirkland Signature labels. Match the actual package; search results may not contain every variant.
- U.S. FDA. Drug Facts labeling for OTC topical Minoxidil.
Exploring Minoxidil options?
See FOLIGAIN® Minoxidil for men and women, including low-alcohol and foam formulas, and TRIOXIDIL® hair care.
This content is for educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure or prevent any disease. Speak with a qualified healthcare professional about your individual situation.
Written by the FOLIGAIN® editorial team. Medical content has not been independently medically reviewed; do not treat it as personalized medical guidance. Competing brands are discussed factually and respectfully; brand names are the property of their respective owners.