Xylitol powder brand comparison

I use xylitol powder as a dental rinse several times a day, and it's definitely improved my oral health. It can also be used as a sugar alternative when cooking. However, different xylitol brands have different additives, sources, and countries of origin (with China often being a poorer source than more strictly-regulated countries), so I've contacted each company to fill in details that aren't available on their packaging:

Recommended cheap xylitol powder for dental rinses:

Photo of NOW Foods Xylitol Powder
NOW Foods Xylitol Powder
  • Source: Corn (non-GMO)
  • Country of origin: China
  • Full ingredients: Xylitol.
  • Bulk price: $4.29 per pound with US shipping (when ordering the 15 pound bag to get free shipping)

Recommended xylitol powder if you're going to consume it:

Photo of Smart Sweet Xylitol
Smart Sweet Xylitol
  • Source: Organic birch and occasionally beech trees (non-GMO)
  • Country of origin: USA and occasionally Austria in cases of limited supply
  • Full ingredients: Xylitol.
  • Bulk price: $6.61 per pound with US shipping (when ordering the 18 pound bag direct from the manufacturer).

Recommended xylitol powder for affordable international shipping:

Photo of Source Naturals Xylismart
Source Naturals Xylismart
Available on iHerb
  • Source: Birch (non-GMO)
  • Country of origin: USA (they told me it is "currently sourced" from the US)
  • Full ingredients: Xylitol.
  • Bulk price: $6.42 per pound with US shipping (when ordering 4 of the 32oz containers to get a discount and free shipping). International shipping is fairly inexpensive.

Other xylitol brands:

Health Garden Kosher Real Birch Xylitol
  • Source: Birch (non-GMO)
  • Country of origin: USA
  • Full ingredients: Xylitol.
  • Bulk price: $6.50 per pound with US shipping (when ordering the 10 pound bag)
Jarrow Formulas XyliPure Xylitol Powder
Available on iHerb
  • Source: Corn (non-GMO)
  • Country of origin: China
  • Full ingredients: Xylitol, silicon dioxide.
  • Bulk price: $8.15 per pound with US shipping (when ordering 5 pounds to get Amazon's free shipping)
  • Source: Corn (could be GMO)
  • Country of origin: China
  • Full ingredients: Xylitol.
  • Bulk price: $10.24 per pound with US shipping (when ordering 2 of the 2 pound bags to get free shipping).
Swanson Premium 100% Pure Xylitol Powder
  • Source: Birch (non-GMO)
  • Country of origin: USA
  • Full ingredients: Xylitol.
  • Bulk price: $8.49 per pound with US shipping (when ordering 10 pounds to minimize shipping cost)
Xlear XyloSweet All Natural Xylitol Sweetener
  • Source: Both birch and corn (could be GMO)
  • Country of origin: China and USA
  • Full ingredients: Xylitol.
  • Bulk price: $4.47 per pound with US shipping (when ordering 2 of the 5 pound bags to get free shipping)
Xyla Xylitol Powder
  • Source: Birch (non-GMO)
  • Country of origin: USA
  • Full ingredients: Xylitol.
  • Bulk price: $6.00 per pound with US shipping (when ordering 2 of the 5 pound bags to get free shipping)
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