Quick answer

Choose the BIBS silicone nipple replacement if you want a hypoallergenic, odor-free nipple with a textured surface to help prevent unlatching; choose the BIBS latex version if your baby prefers the feel of natural rubber and you don't mind slight color variation. Both offer anti-colic design and three flow rates, so the decision comes down to material preference and fit.

Material differences that affect daily use

The silicone nipple is made from medical-grade silicone, which is hypoallergenic and BPA-free. It has a textured surface designed to prevent unlatching, and the material is durable and won't retain odors. The latex nipple is made from natural rubber latex, a natural material that can show color variation from batch to batch. Latex is softer and more flexible than silicone, which some babies find closer to the breast, but it may wear faster and isn't suitable for babies with a latex allergy.

Flow rates and sizing: what each offers

Both nipple types come in three flow rates: slow, medium, and fast. The latex version labels these as 0+ (slow), 2M+ (medium), and 4M+ (fast), while the silicone version offers slow, medium, and fast without age labels. Flow rate matters more than material for feeding comfort—start with slow flow for newborns and move up as your baby's sucking strength increases. If you're unsure, begin with the slowest flow and watch for signs of frustration or leaking.

Anti-colic design and nipple shape

Both nipples feature an anti-colic function to help reduce gas. The silicone nipple is shaped to mimic the natural shape of a nipple during breastfeeding, which can ease the transition from breast to bottle. The latex nipple has a round shape that matches the nipple on the BIBS Colour pacifier, providing consistency if your baby already uses that pacifier. Neither design is objectively better—the choice depends on whether you want a breast-like shape or a pacifier-matched shape.

Key trade-offs at a glance

  • Material feel: Silicone is firmer and odor-resistant; latex is softer and more flexible but may retain odors and show color variation. If your baby refuses firm nipples, try latex first.
  • Allergy considerations: Silicone is hypoallergenic; latex is not suitable for babies with a latex allergy. Always check for latex allergy before choosing latex nipples.
  • Flow rate options: Both offer three flow rates, but latex labels them by age (0+, 2M+, 4M+) while silicone uses slow, medium, fast. Match flow to your baby's feeding pace, not just age.
  • Latch and shape: Silicone has a textured surface and breast-like shape; latex has a round shape matching the BIBS Colour pacifier. Choose the shape your baby is already comfortable with.
  • Replacement timing: Replace nipples every 4–6 weeks with regular use, or sooner if you notice wear, thinning, or changes in flow. Inspect nipples weekly and replace at the first sign of damage.

Product facts

Which should you choose?

Choose silicone if

  • Your baby has sensitive skin or a latex allergy
  • You want a textured nipple to help prevent unlatching
  • You prefer a breast-like shape for combination feeding

Choose latex if

  • Your baby has a latex allergy
  • You want a nipple that won't show color variation
  • You prefer a firmer, odor-resistant material