Our rating
What we like
- Patented Myo-Nozzle integrates tongue-and-throat resistance training into everyday drinking
- Two resistance levels (Level 1 and Level 2) let beginners and those progressing start at the right point
- Bottle kits come in stainless-steel and plastic options with 15 oz, 18 oz, 26 oz, and 32 oz sizes
- 90-day defect warranty and 90-day unopened return window
- US free shipping above the brand's stated threshold; HSA/FSA eligible if recommended by a healthcare provider
Watch out for
- Results take time — brand states 4–6 weeks for most people; some may not notice changes
- Not a medical device; cannot replace a CPAP, oral appliance, or sleep-study diagnosis
- Opened products are not eligible for standard returns — only through the Breathe Better Promise process
- Free shipping threshold is higher than many direct-to-consumer competitors
What REMplenish Sells
REMplenish is a US-based brand built around a single patented invention: the Myo-Nozzle, a specially designed straw nozzle that adds controlled resistance to every sip of water. The premise is straightforward — by drawing through the nozzle, a drinker exercises the tongue and throat muscles that support the upper airway, turning routine hydration into passive myofunctional therapy.
The product line is organised around the Myo-Nozzle in two resistance levels and the bottles it fits: stainless-steel insulated bottles in 15 oz and 26 oz, BPA-free plastic bottles in 18 oz and 32 oz, and complete kits that bundle the nozzle and straw with the bottle. There are also replacement nozzles and accessory straw packs for those who already own a compatible bottle.
The Myo-Nozzle and Myofunctional Therapy
Myofunctional therapy is a branch of orofacial care focused on retraining the muscles of the mouth, tongue, and throat — muscles that, when weakened or poorly coordinated, can contribute to mouth breathing, snoring, and upper airway issues. Traditionally, myofunctional therapy involves working with a certified therapist and performing specific oral exercises daily. REMplenish’s approach is to embed a simplified version of that resistance work into an activity people already do: drinking water.
The brand is explicit that the Myo-Nozzle is not a medical device and is not designed to replace professional evaluation or treatment. It states the product is “currently being studied” for mild to moderate sleep apnea support — meaning published clinical data is not available to independently verify these claims at the time of this review. Anyone with a suspected breathing disorder should consult a qualified healthcare provider. The brand itself includes this recommendation, noting that people with sleep apnea or breathing problems should see a doctor.
What REMplenish can reasonably claim is that the nozzle introduces daily resistance exercise for the tongue and throat. Whether that produces meaningful results depends on consistency of use and individual physiology — the brand’s stated timeline is 4–6 weeks before most users notice changes, stabilising around six months.
Bottle Kits: Choosing the Right Size and Material
The bottle kits come in two material families: stainless-steel insulated bottles (15 oz and 26 oz) and BPA-free plastic bottles (18 oz and 32 oz). The stainless-steel 26 oz kit is the brand’s flagship — double-wall insulation keeps water cold for 24+ hours as stated, and the larger size suits all-day desktop or gym use. The 15 oz stainless kit is designed for children, smaller hands, and travel bags.
On the plastic side, the 18 oz kit is positioned as a family-friendly, lightweight starter — good for school and commute use. The 32 oz plastic kit is the highest-capacity option, suited to people who want fewer refills during a long workday or workout. All kits include the Myo-Nozzle and straw; a standalone Level 1 + 2 nozzle kit is available for people who already own a compatible bottle.
The Level 1 nozzle is gentler and suits children 3 and up or adults beginning airway training. Level 2 provides moderate resistance for more advanced users. Both levels are also sold as a combined kit for households progressing together or sharing between family members.
Shipping, Returns & Warranty
US orders above the brand’s free shipping threshold ship free; standard delivery runs 4–7 days after a 1–3 business day processing window. Canadian orders above their stated CAD threshold also ship free. International shipments are priced at checkout with duties and taxes included.
Unopened items can be returned or exchanged within 90 days. Opened products do not qualify for standard returns, but the brand’s Breathe Better Promise — activated after a virtual therapist consultation — provides a path for customers who used the product consistently and did not see results. A 90-day defect warranty covers a free one-time replacement for damaged or defective items; original packaging is not required for warranty claims.
Is REMplenish Worth It vs. Alternatives?
The closest comparisons are purpose-built myofunctional devices like tongue trainers or jaw exercisers, and professionally guided myofunctional therapy sessions. REMplenish’s advantage is that it converts existing behaviour — drinking water — into the exercise, lowering the friction of building a daily habit. Its disadvantage is that it delivers a simpler, less customised stimulus than working with a certified myofunctional therapist who can assess and adapt exercises to an individual’s specific needs.
For people who have already completed myofunctional therapy and want a maintenance tool, or who want to explore the area before committing to professional sessions, REMplenish offers a lower-barrier entry point. For anyone managing a diagnosed condition, professional guidance remains the appropriate starting point.
How We Researched This Review
We reviewed REMplenish’s product pages, FAQ, shipping and return policies, and brand-stated claims on remplenish.com. We examined the Myo-Nozzle product descriptions, resistance level explanations, and the brand’s own statements about timelines and eligibility (HSA/FSA, age ranges). No physical use or testing took place; claims attributed to the brand are the brand’s own statements and are not independently verified here.
REMplenish Products Worth a Look
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REMplenish 26oz Stainless-Steel Bottle Kit
The brand's full daily therapy system — double-wall insulated 26 oz bottle paired with the Myo-Nozzle and straw for all-day airway strengthening at home or on the go.
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REMplenish 15oz Stainless-Steel Bottle Kit
Compact stainless-steel kit suited to children, smaller hands, and travel; includes the Myo-Nozzle and straw in one ready-to-use package.
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REMplenish 18oz Plastic Bottle Kit
Lightweight BPA-free plastic kit at a lower entry point; the brand recommends it for children and daily commuters starting their airway wellness journey.
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REMplenish 32oz Plastic Bottle Kit
High-capacity BPA-free plastic kit for those who want all-day hydration in fewer refills; includes the Myo-Nozzle and straw for extended daily sessions.
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REMplenish Myo-Nozzle & Straw — Level 1 + 2
Standalone nozzle-and-straw kit in both resistance levels for those who already own a compatible bottle or want to progress from gentle to moderate resistance.