Boon Nursh Bottles - Slow Flow - Silicone Baby Bottles
- Bottle
- 4 ounces
- 12 ounces
- 3.4 ounces
- More reviewed than 89%
A newborn-stage silicone bottle built around a collapsible design and a slow flow nipple, worth choosing if you want feeds that mimic breastfeeding pace.
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How it ranks among the 276 bottles we track
4.6★ across 8,307 Amazon ratings, Bayesian-smoothed toward the category average.
8,307 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
400+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 276 bottles we track - how the scorecard works · full bottles data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Boon Nursh Bottles - Slow Flow are silicone baby bottles sized at 4 ounces, built for newborns just starting on a bottle. The soft silicone body collapses as your baby feeds, which is the defining trait of the Nursh line. Slow flow nipples keep the pace closer to breastfeeding speed.
Nursh bottles skip the rigid vent systems most bottles use and instead let the silicone sleeve compress on its own, an approach Boon markets toward reducing air swallowed during feeds. That makes them a common pick for breastfed babies moving to a bottle, or for parents alternating between breast and bottle. At 4 ounces they suit early newborn portions rather than the larger feeds older babies take.
- Silicone baby bottle, 4 ounce capacity
- Slow flow nipple for newborn age range
- Item weight 0.21 lb per bottle
- Boon Nursh collapsible design
Who it's for
Best suited to parents of newborns who want a soft, breast-like nipple feel and are starting small with 4 ounce portions. Families supplementing breastfeeding often reach for this line specifically for the slow flow pace.
Strengths and trade-offs
Drawn from this product's published specifications.
- Slow flow nipple matches early newborn feeding pace
- Soft silicone body designed to collapse during feeds
- Compact 4 ounce size fits newborn portions
- 4 ounces is too small once your baby needs bigger feeds
- Silicone bottles need replacing sooner than hard plastic
Performance notes
The silicone body of a Nursh bottle collapses as your baby draws milk out, which is meant to limit the air the bottle pulls in compared to a rigid plastic bottle with a separate vent. Slow flow nipples release milk at the lowest rate in the line, matched to newborns still building feeding stamina.
Specifications
| Brand | Boon |
|---|---|
| Capacity | 4 ounces |
| Pack Count | 12 ounces |
| Item Weight | 3.4 ounces |
| Age Range | Newborn |
Other Boon bottles
How it compares
This product against the closest alternatives we track in bottles.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Boon Nursh Bottles - Slow Flow - Silicone Baby BottlesThis product | 4.6 / 5 | 8,307 | 4.5 / 5 |
| Lansinoh 60044677203700 BottleLansinoh | 4.8 / 5 | 52,400 | 4.7 / 5 |
| Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby BottleDr | 4.8 / 5 | 52,000 | 4.7 / 5 |
| Philips SCY903/04 BottlePhilips | 4.8 / 5 | 25,000 | 4.7 / 5 |
| Medela 87095 BottleMedela | 4.8 / 5 | 15,100 | 4.7 / 5 |
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Questions about the Boon bottles
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What age is the Boon Nursh Slow Flow bottle meant for?
It is sized and speed-rated for newborns, with a 4 ounce capacity and the slowest flow nipple in the Nursh line.
Is the Boon Nursh bottle made of plastic or silicone?
It is silicone, which is the material behind the Nursh line's collapsible bottle design.
Will I need to size up from this bottle?
Since it holds 4 ounces and is rated for newborns, expect to move to a larger Nursh size as your baby's feeding volume grows.