Silicone Teether vs. Natural Rubber Teether: Which Is Safer for Newborns?

The One Question Parents Get Wrong First

Most parents shopping for their first teether spend time picking the cutest shape. The material question comes second — which is probably the wrong order. For newborns especially, what the teether is made of matters more than what it looks like, because the safety profile of silicone and natural rubber diverges in ways that aren’t obvious from a product listing.

Both materials are widely used, both have genuine merit, and both can be found on shelves at reputable baby retailers. But they carry different risks, behave differently over time, and require different care routines. Here’s how they actually compare.

Quick Comparison Table

The Latex Allergy Problem With Natural Rubber

100% natural rubber does contain latex, which creates a slight risk of a latex allergy reaction — though it’s rare. The issue is that parents of newborns rarely know yet whether their baby has latex sensitivity, because the immune system hasn’t had enough exposure to signal a reaction.

Research has documented latex allergies in infants younger than one year from teethers and pacifiers, with symptoms including wheezing, facial swelling, rash, or anaphylaxis. Those are serious outcomes for a product meant to soothe sore gums. Pediatricians advise caution since natural rubber contains latex, which can be an allergen for some infants, and recommend monitoring babies for signs of skin irritation or allergy when using latex products.

Some manufacturers address this directly. Certain brands remove the protein that can provoke a latex allergy from the rubber mass used for their teethers, meaning there is no risk of latex allergy when using them. But this protein-removal process is not universal across the industry, and it isn’t always disclosed clearly on packaging. If you or any of your family members have previously experienced latex allergies, rubber teethers should be avoided.

For families with no known latex history, the risk is low. But for a newborn — whose allergic profile is still unknown — that uncertainty is worth factoring in.

Why Food-Grade Silicone Has the Safety Edge

Pediatricians and oral health specialists consistently rank 100% food-grade silicone as the safest teether material for babies — it is non-toxic, sterilizable, and supports healthy jaw development.

The reason comes down to chemistry. Silicone is made using silica, a natural substance derived from sand, which means it does not contain the harmful chemicals that regular plastics do, such as BPA and phthalates. It is a very stable compound that resists chemical reactions with other compounds, which also frees it from causing unwanted allergies.

Silicone is non-porous, meaning it is hypoallergenic and won’t become a safe space for germs to live, and it’s easy to clean — it can simply be tossed in the dishwasher at the end of the day. That last point matters more than it might seem. Newborns are immunologically vulnerable, and a teether that traps bacteria is a real concern.

Silicone teethers can be sterilized in boiling water and chilled in a freezer — two things parents of teething babies use constantly. Natural rubber, by contrast, won’t melt in boiling water but can lose its shape due to heat.

Durability is another meaningful gap. Rubber options aren’t quite as durable as silicone — though strong and flexible, rubber tends to lose shape and strength with time, and can wear with regular use or lose its elasticity. Natural rubber tends to have less longevity compared to the competition, and elements like air, light, and saliva tend to age it quite quickly. A degrading teether is a hygiene issue and potentially a choking hazard if pieces break off.

Not all silicones are created equal, which is why opting for silicone toys labeled as food-safe is the way to go. A quick field test: stretch the silicone between your fingers — if it turns white, it may contain fillers, which are a sign of lower-grade material.

Safety Certifications: What to Actually Look For

Labels like “non-toxic” and “BPA-free” are marketing terms, not certifications. The certifications that carry real weight in the U.S. market are different.

Section 106 of the Consumer Product Safety Improvement Act of 2008 (CPSIA) made ASTM F963 a mandatory consumer product safety standard for children’s toys. Teethers and teething toys specifically must comply with 16 CFR Part 1510. This covers mechanical hazards — think torque, compression, and tension tests to make sure pieces won’t break off under a baby’s bite.

Reputable manufacturers comply with international safety standards including FDA (which ensures silicone products are non-toxic and safe for oral use), CPSC (which regulates baby products for choking hazards and material safety), and EN71 (the European standard covering safety requirements for toys including teethers).

Every teether at Loulou Lollipop is safety-tested by a leading third-party laboratory to ensure it is entirely free of BPA, PVC, phthalates, lead, cadmium, and other toxic substances, and compliant with Consumer Product Safety Commission (CPSC) regulations. Their silicone teethers are made from 100% food-grade silicone and exceed all US CPSC and CPSIA safety requirements — a meaningful distinction from simply meeting the minimum threshold.

For natural rubber teethers, look specifically for ASTM F963 compliance and ask whether the brand has tested for residual latex proteins. The absence of that disclosure is itself informative.

Natural Rubber’s Real Advantages (and When It Makes Sense)

Natural rubber isn’t a bad choice — it’s a different trade-off.

Teethers made of rubber are regularly made from natural rubber that comes from trees with little to no processing, and applying rubber to a baby’s sensitive gums is safe and gentle. Typically a bit softer than silicone, rubber has the ability to mimic the mother’s nipple, which some younger babies find more instinctively comforting. For early teethers — babies just starting to gnaw rather than actively chewing — that softness can matter.

Since natural rubber decomposes naturally over time, it is environmentally benign, which is a genuine advantage for eco-conscious families. Silicone, while durable and reusable, is not biodegradable.

But the maintenance gap is real. With time, rubber may develop moisture and start to smell, so it should be cleaned more thoroughly and frequently. Natural rubber teethers should be replaced every 3–6 months, while a high-quality silicone teether typically lasts until it shows visible wear — often much longer.

So: natural rubber works well for families with no latex allergy history who prioritize biodegradability and prefer a softer texture. Silicone is the stronger default for newborns, families with any atopic history, and parents who want the simplest cleaning routine.

The Bottom Line for Newborns Specifically

Newborns present a specific challenge: their immune systems are new, their allergy profiles are unknown, and they can’t tell you when something is bothering them. That context makes the latex question in natural rubber more significant than it would be for a toddler.

If you or your baby have a latex allergy, silicone is the ideal alternative to natural rubber toys and teethers. And since you likely won’t know about a latex sensitivity until after first exposure, food-grade silicone is the lower-risk starting point for most families.

For parents who want the environmental credentials of rubber and have no family history of latex allergies, look for brands that explicitly test for and remove latex proteins, confirm ASTM F963 compliance, and recommend replacement every three to six months.

Whichever material you choose, the same rules apply: one-piece construction only, no liquid-filled teethers, no teether jewelry, and always supervise use. The AAP advises against frozen-solid teethers, which can be hard enough to damage delicate gums — chilled in the refrigerator is the right call, not the freezer.

If you’re starting from scratch, Loulou Lollipop’s silicone teether collection offers food-grade options in a wide range of shapes and sizes, all free of BPA, PVC, phthalates, lead, and cadmium — a solid place to start when the goal is keeping things simple and safe.