Comparison · updated Nov 3, 2026
milktab vs Kirkland: an honest comparison
Kirkland’s lactase is the same 9,000 FCC as Lactaid Fast Act at about half the price, and it’s one of the cheapest ways to buy lactase. Here’s how it stacks up against one milktab.
The short answer
Kirkland is about half our cost for the same lactase. milktab is one pill instead of three, with two enzymes Kirkland doesn’t have.
Pick Kirkland if
You already shop at Costco, lactase alone works for you, and price matters most.
Pick milktab if
You’d rather take one pill than three, don’t have a Costco membership, or lactase alone isn’t enough.
At a glance
List prices checked Nov 3, 2026. Tell us if one is out of date.
| Feature | milktab | Kirkland Signature Fast Acting Lactase |
|---|---|---|
| Lactase per pillBreaks down milk sugar | 27,000 FCC | 9,000 FCC |
| Protease per pillFor casein, the dairy protein | 22,000 FCC | Not listed |
| Lipase per pillFor dairy fat | 1,000 FCC | Not listed |
| Pills for a full dairy meal27,000 FCC of lactase | 1 pill | 3 caplets |
| Price per pillOne-time purchase | 64¢ (58¢ subscribed) | 11¢ |
| Cost of a full dairy mealLactase only | 58¢–64¢ | 33¢ |
| Pack we priced | 45 pills, $29.00 | 180 caplets, $19.99 at Costco |
| Where to buy | milktab.com, Amazon | Costco (membership required) |
| Guarantee | 30-day money-back | Depends on the retailer |
Bold marks the better value in each row. A full dairy meal is 27,000 FCC of lactase, the amount in one milktab.
Where each one wins
Kirkland does these better
- Much cheaper. About 11¢ a caplet. A full dairy meal costs about 33¢, roughly half of a milktab.
- A big box. 180 caplets lasts a long time if you eat dairy every day.
- Easy small doses. One caplet for a little dairy, more for a big meal.
milktab does these better
- One pill for a full meal. 27,000 FCC of lactase, where Kirkland takes three caplets.
- It has more than lactase. Protease for casein and lipase for dairy fat. Kirkland lists lactase only.
- No membership. Order from milktab.com or Amazon. Kirkland is sold through Costco.
Who should pick which
Kirkland
Daily dairy on a budget
Nothing we found costs less per meal except Member’s Mark.
Kirkland
You’re at Costco anyway
It’s on the shelf next to everything else you’re buying.
milktab
Three pills is a hassle
One milktab replaces three caplets at the table.
milktab
Lactase only “kind of” works for you
If cheese or cream still bothers you, protease and lipase may help.
Questions people ask
Is Kirkland lactase the same as Lactaid?
Both list 9,000 FCC of lactase per caplet. Kirkland costs about half as much.
Why pay more for milktab?
You get one pill instead of three, plus protease and lipase. If lactase alone works for you and you shop at Costco, Kirkland is the cheaper choice.
Compare milktab with others
Sources
Kirkland Signature Fast Acting Lactase label (9,000 FCC lactase per caplet); Costco listing, 180 count, $19.99. milktab label (27,000 FCC lactase, 22,000 FCC protease, 1,000 FCC lipase); milktab.com, 45 pills, $29.
Spot something wrong?
We make milktab, so we’re biased, and we try to be fair anyway. If you work at Kirkland or just know better, email contact@milktab.com and we’ll fix it.
27,000 FCC units of lactase in one tab
Three times what’s in Lactaid Fast Act, and more lactase than any dose used in the trials on this page.