# Silicone breast pumps and oversupply

Can using a silicone breast pump cause milk supply to become too high?

No checked fact addresses whether these pumps raise milk supply\. Haakaa Generation 2 Silicone Breast Pump with Suction Base & Silicone Cap \(Gen 2\): After use with two babies, the writer's view is that it is a silicone let\-down catcher rather than a pump: it suctions onto the breast not being fed from and collects milk that would otherwise soak a nursing pad, often one to two ounces per session in the early weeks\. Users who tried to make it their main pumping solution for returning to work were uniformly disappointed, because it cannot empty a breast\. Haakaa Generation 2 Silicone Breast Pump with Suction Base 5 oz \(150 ml\): Described as a silicone milk catcher rather than a pump, collecting letdown from the breast the baby is not feeding from, often an ounce or two a session in the early weeks\. Haakaa Gen 2 Silicone Breast Pump with Suction Base 4 oz and Silicone Flower Stopper Set \(combo SKU MHK011\-MHK010\): It has no lever or pump mechanism to keep drawing milk the way a manual pump does, so it relies on natural flow\.

### 1. [Haakaa Generation 2 Silicone Breast Pump with Suction Base & Silicone Cap \(Gen 2\)](/products/ucp/haakaausa-com/1436330459189) (sold by haakaausa\.com)

After use with two babies, the writer's view is that it is a silicone let\-down catcher rather than a pump: it suctions onto the breast not being fed from and collects milk that would otherwise soak a nursing pad, often one to two ounces per session in the early weeks\.

- What it does: After use with two babies, the writer's view is that it is a silicone let\-down catcher rather than a pump: it suctions onto the breast not being fed from and collects milk that would otherwise soak a nursing pad, often one to two ounces per session in the early weeks\. (blog) <https://onlymomreviews.com/posts/haakaa-pump-review/>
- Drains the breast: Users who tried to make it their main pumping solution for returning to work were uniformly disappointed, because it cannot empty a breast\. (review) <https://www.babbycare.com/reviews/haakaa-pump-worth-it/>
- Pumping action: -

### 2. [Haakaa Generation 2 Silicone Breast Pump with Suction Base 5 oz \(150 ml\)](/products/ucp/haakaausa-com/8210425025) (sold by haakaausa\.com)

Described as a silicone milk catcher rather than a pump, collecting letdown from the breast the baby is not feeding from, often an ounce or two a session in the early weeks\.

- What it does: Described as a silicone milk catcher rather than a pump, collecting letdown from the breast the baby is not feeding from, often an ounce or two a session in the early weeks\. (blog) <https://onlymomreviews.com/posts/haakaa-pump-review/>
- Drains the breast: -
- Pumping action: -

### 3. [Haakaa Gen 2 Silicone Breast Pump with Suction Base 4 oz and Silicone Flower Stopper Set \(combo SKU MHK011\-MHK010\)](/products/ucp/haakaausa-com/9212977037) (sold by haakaausa\.com)

Agreed use case is catching let\-down on the non\-nursing side and quietly building a freezer stash, not replacing a pump for return\-to\-work volumes\.

- What it does: -
- Drains the breast: -
- Pumping action: It has no lever or pump mechanism to keep drawing milk the way a manual pump does, so it relies on natural flow\. (blog) <https://motherhoodcommunity.com/haakaa-breast-pump/>

## Also cited in the text

- Haakaa Gen 2 Silicone Breast Pump with Suction Base 4 oz and Silicone Flower Stopper Set \(combo SKU MHK011\-MHK010\), what it is for: Agreed use case is catching let\-down on the non\-nursing side and quietly building a freezer stash, not replacing a pump for return\-to\-work volumes\. (review) <https://www.babbycare.com/reviews/haakaa-pump-worth-it/>

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Written 2026-10-25T02:35:18.031Z.

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