Kirkland Signature OPTIFIBER, 25.6 Ounces 190 Servings (2 Pack)
KIRKLAND

Kirkland Signature OPTIFIBER, 25.6 Ounces 190 Servings (2 Pack)

$28.50$43.99★ 4.6(6,601 reviews)
Mubboo Score 4.4/10
  • Natural Fiber Supplement
  • Completely Dissolves in Water
  • Non-Thickening and Grit-Free
  • 190 Servings
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Mubboo Value Score: 4.4/10

Quality9.2/10
based on 4.6/5 customer rating
Popularity1.9/10
6,601 reviews, top 31% in Fiber Supplements
Value2.0/10
priced below 20% of Fiber Supplements

How it stacks up

Rated 4.6/5 — better than 80% of 55 Fiber Supplements we track. Premium-tier pricing at $28.50.

Head-to-Head vs Category Leader

KIRKLANDMEMBER´S MARK (Leader)
Price$28.50$27.35
Rating4.6/54.8/5
Reviews6,601756
Mubboo Score4.4/104.1/10

The category leader MEMBER´S MARK Member's Mark Fiber Capsules 2Pack (400 offers better ratings at $27.35.

What reviewers say

Synthesized from 40 reviews · 100% verified purchases.

Drink immediately after mixing to avoid a thick gel-like texture, and ensure you drink plenty of water to help the fiber work effectively.

Rating reliability

Well reviewed — reliable rating

About KIRKLAND

  • 24 products in our database
  • Average rating: 4.7/5 across all products
  • Price range: $7.93 – $95.79
  • Categories: collagen, Contact Lens Solution, Fiber Supplements, Golf Balls, Microfiber Cloths, Multivitamins

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Benefiber On the Go Prebiotic Fiber Supplement Powder for Digestive Health, Daily Fiber, Unflavored - 28 Sticks (3.92 Ounces)
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Benefiber Daily Prebiotic Fiber Supplement Powder for Digestive Health, Unflavored -124 Teaspoons (8.7 Ounces)
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Frequently Asked Questions

Is the KIRKLAND Kirkland Signature OPTIFIBER, 25.6 Ounces 190 Servings (2 Pac worth buying in 2026?

It earns a Mubboo Score of 4.4/10, with a 4.6/5 rating from 6,601 reviews — better than 80% of Fiber Supplements we track.

How much does the KIRKLAND Kirkland Signature OPTIFIBER, 25.6 Ounce cost?

It is currently $28.50 — premium-tier pricing for Fiber Supplements.

How does it compare to the top-rated Fiber Supplements?

The category leader MEMBER´S MARK Member's Mark Fiber Capsules 2Pack (400 offers better ratings at $27.35.

Sources & References

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