Can I Take Prolactin to Increase Milk Supply?

Posted on February 16, 2026

Introduction
The Role of Prolactin in Your Body
Can You Take Prolactin as a Supplement?
Medications That Increase Prolactin Levels
Natural Ways to Boost Prolactin Production
Factors That Can Lower Your Prolactin
Understanding the "Receptor Site" Theory
Herbs and Supplements as Alternatives
When to Seek Professional Help
Conclusion
FAQ

Introduction

If you have ever felt like you are constantly watching the ounces in your pump bottle or worrying if your baby is getting enough, you are not alone. Many parents find themselves searching for ways to boost their production, often leading to questions about the hormones that make lactation possible. You might have heard that prolactin is the "milk-making hormone" and wondered if you can simply take it as a supplement or a pill.

At Milky Mama, we know how much pressure you feel to provide for your little one, and we want to help you navigate these hormonal hurdles with confidence. This article will explore the science behind prolactin, why you cannot currently take it as a simple supplement, and what options actually work to support your supply. While breastfeeding is natural, it does not always come naturally, and understanding your body is the first step toward a smoother journey.

We will break down how your body produces this hormone, the medications often used to influence it, and natural strategies to keep your levels high. Every drop counts, and our goal is to empower you with the clinical knowledge you need to make the best decisions for your family.

The Role of Prolactin in Your Body

To understand if you can take prolactin, we first need to look at what it does. Prolactin is a hormone produced by the pituitary gland, which is a small, pea-sized gland at the base of your brain. While it has many functions in the body, its primary job during the postpartum period is to signal the mammary glands to produce milk.

During pregnancy, your prolactin levels rise significantly. However, they are kept in check by high levels of estrogen and progesterone produced by the placenta. Once the placenta is delivered after birth, those "brake" hormones drop suddenly. This allows prolactin to step up and tell your breasts to begin the process of full-scale milk production, often referred to as your milk "coming in."

How Prolactin Works on a "Supply and Demand" Basis

Once lactation is established, prolactin is released in response to your baby nursing or you using a breast pump. When the nerves in your nipple are stimulated, a message is sent to your brain. Your brain then releases a surge of prolactin into your bloodstream. This surge travels to the milk-producing cells in your breasts, known as alveoli, and tells them to get to work.

It is important to remember that prolactin is responsible for making the milk, while a different hormone, oxytocin, is responsible for the "let-down" or the release of that milk. These two work together like a well-oiled machine. If prolactin levels are consistently low, the message to create more milk may not be strong enough to meet your baby's needs.

Key Takeaway: Prolactin is the hormone that signals your body to manufacture milk. It relies on frequent breast stimulation and milk removal to stay at effective levels.

Can You Take Prolactin as a Supplement?

The short answer is no, you cannot currently take a prolactin pill or supplement to increase your supply. There are several biological and scientific reasons why this is the case.

First, prolactin is a protein hormone. If you were to swallow a prolactin pill, your digestive system would break it down into amino acids before it ever reached your bloodstream. It would be treated like any other protein you eat, such as a piece of chicken or a bean, rendering it useless for milk production.

Second, hormones are incredibly powerful and sensitive. Taking pure prolactin would require precise medical supervision and a delivery method that bypasses the digestive tract, such as an injection. While researchers are looking into these possibilities, there is no "over-the-counter" prolactin hormone available for purchase.

The Future of Prolactin Therapy

There is ongoing research into "Prolactin-XL," an engineered protein therapeutic being developed by institutions like the Wyss Institute at Harvard. This research aims to create a long-lasting, injectable version of prolactin that stays in the body longer than the natural hormone.

The goal of this research is to help parents who struggle with low milk supply due to medical conditions or extreme circumstances. However, this is currently in the testing phases and is not available for clinical use yet. For now, we must rely on other methods to influence how much prolactin our bodies produce.

Medications That Increase Prolactin Levels

While you cannot take prolactin itself, certain medications can increase your body's natural production of the hormone. These medications are known as pharmaceutical galactagogues. A galactagogue is simply a substance that helps initiate or increase milk supply.

These drugs typically work by blocking dopamine. In the brain, dopamine acts as an inhibitor for prolactin. It essentially tells the pituitary gland to "stop" making prolactin. By blocking dopamine, these medications allow prolactin levels to rise.

Metoclopramide (Reglan)

Metoclopramide, commonly known as Reglan, is a medication primarily used to treat gastrointestinal issues like nausea or slow stomach emptying. In the United States, it is sometimes prescribed "off-label" to help increase milk supply.

While it can be effective for some, it does come with potential side effects. The most significant concern is the risk of depression or anxiety, which can be particularly difficult for parents already dealing with postpartum mood changes. Other side effects can include fatigue, restlessness, or involuntary muscle movements. It is usually only recommended for short-term use under strict medical guidance.

Domperidone (Motilium)

Domperidone is another medication that blocks dopamine and increases prolactin. In many countries, such as Canada and the United Kingdom, it is the preferred choice for boosting supply because it does not cross the blood-brain barrier as easily as Reglan, meaning the risk of depression is lower.

However, it is important to note that Domperidone is not FDA-approved in the United States. The FDA issued warnings regarding its use due to potential heart-related risks when used in high doses or by certain individuals. While some parents in the US still seek it out, it is not legally available for lactation support through standard American pharmacies.

What to Do Before Considering Medication

Consult a Professional: Always speak with a healthcare provider or an International Board Certified Lactation Consultant (IBCLC) before starting any medication.
Evaluate the Latch: Ensure your baby is transferring milk effectively. Even high prolactin won't help if the milk isn't being removed.
Check Your Health History: Discuss any history of depression or heart issues with your doctor.
Monitor Your Progress: If you start a medication, keep a log of your pumping output or your baby's weight gain to see if it is truly helping.

For individualized guidance with low supply, latch, pumping, or milk transfer, consider professional breastfeeding help from a certified lactation consultant.

Natural Ways to Boost Prolactin Production

Because medications carry risks, many parents prefer to start with natural methods to boost their prolactin levels. Your body is designed to respond to your baby, and there are several ways to "hack" your biology to encourage higher hormone levels.

Prioritize Frequent Milk Removal

The most effective way to keep prolactin levels high is to remove milk frequently. Every time your breasts are emptied, whether by nursing or pumping, your body receives the signal to make more. If the breasts remain full, a protein called Feedback Inhibitor of Lactation (FIL) builds up. FIL tells your body to slow down production.

If you are worried about supply, try to increase the frequency of your sessions rather than just the duration. Pumping for 10 minutes every two hours is often more effective for prolactin production than pumping for 30 minutes every five hours.

For more ideas about building a consistent routine, read this guide to effective ways to increase milk supply.

The Power of Night Nursing

Prolactin levels are naturally higher during the night and early morning hours. This is why many parents notice their largest pumping output occurs first thing in the morning. While it is exhausting to wake up for middle-of-the-night sessions, these are actually some of the most valuable opportunities for hormone stimulation. If you are trying to increase your supply, keeping at least one session between 1:00 AM and 5:00 AM can be very beneficial.

Skin-to-Skin Contact

Never underestimate the power of "kangaroo care." Holding your baby skin-to-skin (your bare chest against their bare chest) triggers a massive hormonal response. This increases both oxytocin and prolactin. It also helps you tune into your baby's early feeding cues, ensuring they get to the breast before they are too frustrated to latch well.

Proper Nutrition and Hydration

While food alone doesn't contain prolactin, certain nutrients support the endocrine system that produces it. We often recommend focusing on whole foods like oats, flaxseed, and dark leafy greens. These are known as nutritive galactagogues.

At Milky Mama, we formulated our products with these specific ingredients in mind. For example, our Emergency Lactation Brownies and Pumping Queen™ herbal supplement are designed to provide nutritional support during this demanding time. We use ingredients like Moringa and Alfalfa, which have been used for generations to support lactation without the use of harsh chemicals.

Key Takeaway: Frequency is king. Removing milk often, especially at night, and maintaining skin-to-skin contact are the most reliable ways to naturally boost prolactin.

Factors That Can Lower Your Prolactin

Just as some things boost your hormones, other factors can unintentionally lower them. Being aware of these can help you troubleshoot a sudden dip in supply.

Smoking and Nicotine

Studies have shown that smoking can lead to significantly lower prolactin levels in lactating parents. Nicotine interferes with the release of the hormone from the pituitary gland. If you are struggling with supply, reducing or eliminating nicotine use can often lead to a noticeable improvement.

Certain Medications

Be cautious with medications that contain pseudoephedrine (often found in allergy or cold medicines). These are known to dry up milk supply by interfering with the hormonal process. If you have a cold, look for breastfeeding-safe alternatives and stay hydrated.

Some types of hormonal birth control can also impact prolactin. Generally, "progestin-only" options (like the mini-pill or certain IUDs) are preferred because estrogen can interfere with prolactin's ability to stimulate the breast tissue.

Stress and Lack of Support

While stress itself doesn't always "dry up" milk instantly, the adrenaline and cortisol produced during high-stress periods can inhibit the let-down reflex. If milk isn't being released, it isn't being removed, and your prolactin levels will eventually drop because your body thinks the milk isn't needed.

Creating a "nursing nest" where you feel safe, comfortable, and supported can help lower your stress hormones and allow your lactation hormones to do their job.

Understanding the "Receptor Site" Theory

One reason why it is so important to focus on prolactin in the early days of breastfeeding is the "receptor site" theory. Think of your milk-making cells as having little "docks" where prolactin can land.

In the first few weeks after birth, your body is busy creating these docks. The more stimulation you have during this "window of opportunity," the more receptor sites your body builds. Once these sites are established, your body becomes more efficient at making milk. This is why getting off to a strong start—or working hard to "reset" your supply early on—can have long-term benefits for your entire breastfeeding journey.

Herbs and Supplements as Alternatives

Since you can't take a prolactin pill, many parents turn to herbal supplements. Herbs like Moringa, Blessed Thistle, and Goat's Rue have been used for centuries to support milk production.

Our Milk Goddess™ supplement, for instance, focuses on Moringa, which is a nutrient-dense leaf known for supporting supply in many cultures. Unlike some pharmaceutical options, these herbs generally have a lower risk of severe side effects like depression. However, they are still powerful.

It is vital to choose high-quality, standardized supplements. You can explore Milky Mama's lactation supplement collection when comparing supportive options, and speak with your healthcare provider before using any new supplement.

Next Steps for Supporting Your Supply:

Increase your skin-to-skin time to at least 20 minutes a day.
Add a power-pumping session once a day for a week to mimic a "growth spurt."
Ensure you are eating enough calories and drinking enough water.
Reach out to a lactation consultant if you don't see improvement within a few days.

When to Seek Professional Help

If you have tried increasing your pumping frequency, focused on skin-to-skin, and tried supportive supplements but still feel your supply is low, it is time to call in the experts. A certified lactation consultant can help determine if the issue is hormonal (prolactin levels) or mechanical (the baby's latch or the pump's fit).

Sometimes, low prolactin can be linked to underlying medical conditions such as:

Polycystic Ovary Syndrome (PCOS)
Thyroid imbalances
Retained placental fragments
Insufficient Glandular Tissue (IGT)

In these cases, "taking something" for prolactin might be part of the solution, but treating the underlying cause is the most important step. Your healthcare provider can order a simple blood test to check your prolactin levels if they suspect a hormonal deficiency.

Conclusion

While you cannot currently take prolactin as a supplement, you have incredible power to influence your body's hormone production through your actions and nutrition. Understanding that your body works on a supply-and-demand basis is the key to managing your journey. Whether you choose to use supportive lactation treats, herbal supplements, or just focus on more frequent sessions with your baby, remember that you are doing an amazing job.

Prolactin is the hormone that makes milk, while oxytocin releases it.
Frequent milk removal and night nursing are the best natural prolactin boosters.
Medications like Reglan can boost prolactin but require medical supervision.
Research is ongoing for future prolactin therapies, but they are not yet available.

Your well-being matters just as much as your milk supply. If the stress of "chasing ounces" is taking a toll on your mental health, please reach out for support. At Milky Mama, we are here to provide the products and the education you need to reach your feeding goals, whatever they may look like.

This product is not intended to diagnose, treat, cure, or prevent any disease. Consult with your healthcare provider for medical advice.

FAQ

Can I get a prolactin prescription from my doctor?

You cannot get a prescription for pure prolactin, but your doctor can prescribe medications like Metoclopramide (Reglan) that increase your body's own prolactin production. These are usually used "off-label" for lactation and require a discussion about potential side effects.

Do lactation cookies contain prolactin?

No, lactation cookies do not contain the prolactin hormone. Instead, they contain ingredients like oats and flaxseed that provide the nutrition and fiber your body needs to support the hormonal processes involved in making milk. You can compare options in Milky Mama's lactation snacks collection.

How can I tell if my prolactin levels are low?

The most common sign of low prolactin is a consistently low milk supply despite frequent nursing or pumping. However, the only way to know for sure is through a blood test ordered by your healthcare provider, which measures the nanograms per milliliter (ng/mL) of the hormone in your system.

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Can I Take Prolactin to Increase Milk Supply?

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