Comotomo Gen 2 Baby Bottle, 5 oz

What we like and what concerns us

Caution

• BASF says the ring is PPSU; Comotomo’s US page does not state the ring, cap or nipple materials
• The independent screens tested the earlier Natural Feel bottle, and generic silicone studies did not test this bottle

Good

• A soft silicone body avoids a rigid polypropylene body
• Wide neck and a short component list
• States that boiling, sterilizers and the dishwasher top rack are all fine

What the evidence shows

• The Best Baby Bottles (Comotomo entry) BabyGearLab, 2025-04

  BabyGearLab scored the Comotomo silicone bottle (5 oz and 8 oz) 84 of 100, ranked 1 of 14 bottles, noting a silicone body and nipple, wide mouth and vented nipple. The page does not say whether the tested bottle is Natural Feel or Gen 2. It is a performance and eco-health score, not a chemical analysis; the date is the page update date.

  Independent review. Match to this exact product not confirmed.

• Safest Baby Bottles Sans Lead & Microplastics: Baby Registry Guide Mamavation (reporting testing by Eric Ritter, DetectLead.com), 2024-03-13

  Lists Comotomo Natural Feel Baby Bottles (silicone) as no detectable lead by XRF. This is the Natural Feel bottle, not Gen 2; no reporting limit or third-party lab confirmation is stated, and Mamavation did not commission the testing.

  Independent lab test. About an earlier version.

• Popular Baby Bottles With No Detected BPA, Lead, or Phthalates Consumer Reports, 2023-08-25

  Consumer Reports tested the Comotomo Natural Feel silicone bottle (the earlier version, not Gen 2) among nine bottles and reported no detectable BPA, lead or the eight federally regulated phthalates. The laboratory name and detection limits are not published. Page updated 2025-10-08.

  Independent review. About an earlier version.

These are independent sources we located and read. Manufacturer statements are not counted as evidence. How we weigh sources

Product identity

The 5 oz size is listed at $12.99, and the page showed the product as sold out when read. Gen 2 facts are kept apart from the earlier Natural Feel bottle, whose retailer listing names a polypropylene cap and outer ring; none of that is applied here.

What touches the liquid

The body material is only one part of this product. Each part below is listed with what the maker says it is made of, and whether it reaches milk, formula or water.

Construction, coatings and base

Heat, sterilizing and dishwasher

Comotomo states the bottle is safe in the top rack of a dishwasher, in sterilizers, in boiling water and in the microwave. The CDC says never to microwave infant formula, so the microwave statement is a product-care claim and not advice for heating a feed.

Formula preparation: The CDC says very hot water, about 158°F / 70°C, is needed to kill germs when a baby is younger than 2 months, was born prematurely or has a weakened immune system. Standard preparation otherwise follows the formula maker's instructions. Never use a microwave, and bottles must be clean and sanitized. Pathogen control for higher-risk infants takes priority over any concern about particle release, so this page never suggests cooler water for those babies. CDC, Infant Formula Preparation and Storage.

Cleanability

Four components are listed: cap, ring, nipple and bottle. Comotomo says the wide neck allows 'brush-less cleaning' and recommends replacing the bottle every 6 months. The dual vents are built into the body.

We show the facts and not a score. A CPSC recall in 2016 tied mold to an opaque, removable valve that held moisture, so hidden or narrow wet passages are worth checking on any cup.

What was tested, and what is only a claim

Independent testing of this exact product

None found as of September 30, 2026. That is missing evidence, not a finding against the product. Where a laboratory report is published, we will show the lab, method, batch, analyte, result, unit and detection limits, and we will never write a non-detect as zero.

Tests of an earlier version (not this product)

These results are for a different version of this brand's bottle. We show them so you can see what exists, and we do not apply them to this product.

• Comotomo Natural Feel silicone bottle (earlier version): BPA, lead and phthalates: None detected. Consumer Reports (published August 25, 2023, updated October 8, 2025); A small sample scraped or cut from the bottle and analyzed. Consumer Reports tested the “Comotomo Natural Feel” silicone bottle, the earlier version, not the Gen 2 bottle. Detection limits and the laboratory’s name were not published. Not detected is not the same as absent.
• Comotomo Natural Feel silicone bottle (earlier version): Lead: No detectable lead. DetectLead (Eric Ritter), XRF screening for Mamavation (published March 13, 2024); Handheld XRF surface screening. The article tested the “Comotomo Natural Feel” silicone bottle, the earlier version, not the Gen 2 bottle. Detection limits are not reported.

What the manufacturer states

• BPA, PVC, phthalates: 'Free from chemicals such as BPA, PVC, and Phthalates.' Manufacturer disclosure Comotomo

Background evidence about the materials (not this product)

These studies tested generic products, not this exact one. They show what is possible, and they don't show that this product releases anything or causes harm.

• Silicone: Silicone is practical and often preferred for nipples and soft interfaces. Findings on generic silicone are background and do not establish exposure or harm from any one product. Evidence for silicone

Recalls and legal history

No recall of this exact product was located in the sources reviewed. A recall elsewhere in the category does not apply to it.

We searched the CPSC recall database by brand on September 30, 2026. For Comotomo: No recall found. CPSC recall service

What we still don't know

• The Gen 2 cap and nipple materials, and whether Comotomo’s own materials list confirms the PPSU ring
• Exact-product siloxane or particle data
• Independent tests of Gen 2, since the tests found tested the earlier Natural Feel bottle

What would change our verdict

• A full Gen 2 component-material list
• An independent laboratory report for this bottle
• A recall

Price

Prices and stock change often. Price and retailer availability play no part in the verdict.

Sources

Every source below was checked on the date shown, and the kind of evidence is named.

• Comotomo Baby Bottle, Gen 2, Comotomo. Manufacturer disclosure Accessed September 30, 2026. Comotomo states: food-grade silicone body, built-in dual vents, dishwasher (top rack), sterilizer, boiling-water and microwave safe, free from BPA, PVC and phthalates, 5 oz slow flow for 0 to 3 months and 8 oz medium flow, recommended replacement every 6 months. The materials of the cap, ring and nipple are not stated on the U.S. page. Product data feed: 5 oz Green BB2_150G and Yellow BB2_150Y at $12.99; 2-count 5 oz BB2_150TG and BB2_150TY at $22.99; 8 oz sizes also listed. Listed as sold out when read. The product data feed lists no barcodes.
• Microplastics release from infant feeding bottles and milk storage bags, Zhao L et al., Food Control 168 (2025). Independent study Accessed September 30, 2026. A 2025 study of microplastic release from infant feeding bottles and milk storage bags. The supplied dossier records that it reported particle release from tested PPSU and silicone feeding bottles that rose with temperature, using products bought in China; that summary was not re-verified against the paper. DOI 10.1016/j.foodcont.2024.110921, published February 2025. The abstract could not be retrieved on 2026-09-30, so which materials were tested and the temperature findings are as recorded in the supplied dossier and have not been re-verified against the paper.
• Migration of 35 Siloxanes from Silicone Food Contact Materials in China and Their Potential Exposure Assessment, Chen Y et al., Foods (MDPI) 15(8):1387 (2026). Independent study Published April 16, 2026. Accessed September 30, 2026. Tested migration of 35 siloxanes from 30 silicone food-contact products into food simulants under worst-case conditions and modelled exposure. Cyclic siloxanes exceeded proposed limits in several samples, particularly for children; D4 and D5 showed negligible risk while D3 raised potential concern, and 14 low-molecular-weight siloxanes (including D6 and L12) exceeded the threshold of toxicological concern across all age groups in the modelled scenarios. The products were silicone food-contact items sold in China, not the products on this page, and the exposure figures are modelled. Abstract read through Crossref.
• Infant Formula Preparation and Storage, U.S. Centers for Disease Control and Prevention. Regulatory Published May 14, 2026. Accessed September 30, 2026. About 158°F / 70°C water is called for when the baby is younger than 2 months, was born prematurely or has a weakened immune system; never microwave; bottles must be clean and sanitized. Standard preparation otherwise follows the formula maker's instructions. Page shows 'Last Updated May 14, 2026'.
• Comotomo uses BASF’s PPSU as the base polymer in baby bottle ring component, BASF (material supplier) news release. Manufacturer disclosure Published June 15, 2026. Accessed September 30, 2026. BASF states that Comotomo’s next-generation baby bottle uses an over-molded ring made of BASF Ultrason P 2010 polyphenylsulfone (PPSU) on a silicone body. A supplier’s news release, not Comotomo’s own page. It calls the product a “next-generation baby bottle” and does not use the label “Gen 2”.
• Comotomo Natural Feel Baby Bottle (retailer listing), Jillian’s Drawers. Retailer or secondary Accessed September 30, 2026. The listing states the bottle is made from silicone and PPSU, the nipple from silicone, and the cap and outer ring from polypropylene. A retailer listing that does not say which generation it describes. It is used only to show what an earlier version listed and is never applied to Gen 2.
• Baby Bottles With No Detected BPA, Lead, or Phthalates, Consumer Reports. Independent test Published August 25, 2023. Accessed September 30, 2026. Consumer Reports tested nine baby bottles, including the Dr. Brown’s Natural Flow Anti-Colic Options+ glass bottle, the Philips Avent Natural plastic bottle and the Comotomo Natural Feel silicone bottle, for BPA, lead and phthalates by taking a small sample from each bottle and analyzing it, using a method following CPSC guidelines for lead in glass. It reports that it did not detect any of those chemicals in any bottle. It does not publish detection limits or the laboratory’s name. Originally published August 25, 2023 and updated October 8, 2025. The article names product lines, not exact model numbers.
• Safest Baby Bottles Sans Lead & Microplastics, Mamavation with DetectLead (Eric Ritter). Independent test Published March 13, 2024. Accessed September 30, 2026. DetectLead screened 32 baby bottles with a handheld XRF analyzer and reported detectable lead in the print or design of many of them. It reported 7 ppm and 6 ppm lead for the Dr. Brown’s Natural Flow Anti-Colic Options+ Narrow Glass, no detectable lead and a second reading of 33 ppm for the Philips Avent Glass Natural, and no detectable lead for the Comotomo Natural Feel. It states that no laboratory microplastic testing was done. A consumer-advocacy blog reporting handheld XRF screening. No accreditation is stated.
• CPSC recall database search by brand, U.S. Consumer Product Safety Commission (SaferProducts.gov recall service). Regulatory Accessed September 30, 2026. No CPSC recall of a bottle or cup was found for Pura Stainless, Lifefactory, Philips Avent, Dr. Brown’s/Handi-Craft, Hegen, Comotomo, ezpz, Munchkin or Evenflo. The recalls found for those brands concerned other products: Philips Avent video monitors (2023), Dr. Brown’s pacifier holders (2018) and bottle soap (2017), Munchkin pacifiers (1995) and shoes (2001), and a Pura fragrance diffuser (2025). Searched by brand on 2026-09-30. Some searches returned a service error and were repeated; the results are summarized on the recalls block.