Are Herbal Supplements Safe During Perimenopause?

It is one of the most sensible questions you can ask before trying anything new for the transition: is this actually safe to take?

The answer has two parts. Herbal supplements, used thoughtfully, can be both safe and genuinely helpful. But the supplement industry is loosely regulated, quality varies enormously between products, and some herbs interact with medications. So the real question is not "are herbal supplements safe" in the abstract. It is "is this specific product, from this specific company, safe for me."

This guide gives you the tools to answer that yourself, with confidence.

Key takeaways

• The FDA does not test or approve supplements before they reach the shelf. The manufacturer, not a regulator, is responsible for safety and accurate labeling.
• This means quality varies enormously. The single best protection is choosing products that are third-party tested by an independent lab.
• Herbs are active compounds, and some interact with medications. Always tell your doctor what you take, especially with prescriptions.
• A well-chosen herbal product, tested, transparent, and appropriate for you, can be a safe and effective part of navigating the transition.

The thing most people do not know: how supplements are regulated

Here is the fact that reframes the whole question. In the United States, dietary supplements are not approved by the FDA before they go on sale.

Under a 1994 law, supplements are regulated as a category of food, not as drugs. Manufacturers do not need FDA approval before selling a product, and they are the ones responsible for making sure it is safe and accurately labeled. The FDA can act against a product, but generally only after it is already on the market and a problem has surfaced.

Source: FDA: Questions and Answers on Dietary Supplements

This is not a reason to avoid supplements. It is a reason to choose them carefully. It explains why two bottles that look nearly identical on the shelf can be worlds apart inside: one accurately dosed and clean, the other under-dosed, mislabeled, or contaminated. The label alone will not tell you which is which. What you look for around the label will.

How to judge whether a supplement is safe

Because you are effectively your own quality inspector, here is what actually separates a trustworthy product from a risky one.

1. Third-party testing

This is the most important signal. A reputable company pays an independent lab to verify that what is on the label is what is in the bottle, and that it is free of harmful contaminants like heavy metals. Look for testing by or certification from independent organizations such as USP, NSF, or Informed Choice, or a company that publishes its own third-party lab results.

Source: Why third-party certification is important for dietary supplements (OPSS)

2. Transparent labeling

A trustworthy label tells you exactly what you are getting: every ingredient and the amount of each. Be cautious of "proprietary blends," which list ingredients without disclosing how much of each is inside. That format can hide under-dosing, and it makes it impossible to check the amount against the research or to flag an interaction.

3. Good manufacturing practices and where it is made

Look for products made in facilities that follow Good Manufacturing Practices (GMP), a set of quality-control standards for how the product is made. It is also worth knowing where a supplement is manufactured. Products made in the USA, the EU, or similar jurisdictions are subject to stricter oversight and facility inspections than those made in places with looser standards. A brand that tells you plainly where its product is manufactured is showing you it has nothing to hide.

4. Transparent sourcing and a real company behind it

Can you tell where the herbs come from, who formulated the product, and who stands behind it? A named formulator with real credentials, clear sourcing, and responsive customer support are all signs of a company that takes safety seriously.

The other half of safety: interactions

Quality is one half of safe. The other half is whether a given herb is right for you, and this is where your doctor, or a licensed herbalist, comes in.

A note on who to ask. Most conventional medical training includes very little herbal education, so a doctor's opinion on a specific herb may be more reflex than expertise. For herb-specific questions, someone actually educated in them, such as a licensed herbalist or an acupuncturist with herbal training (credentials like L.Ac. or DACM), can give you more informed, personal guidance than any article. Your prescribing doctor still needs the full list of what you take, because interaction checks with your medications are their territory.

Herbs are active compounds, which is exactly why they can help, and also why some interact with medications. A few well-known examples:

• St. John's Wort is one of the most interaction-prone herbs, affecting how the body processes many drugs, including antidepressants, birth control, and blood thinners.
• Black cohosh carries rare reports of liver injury and can interact with the breast-cancer drug tamoxifen. We cover it in black cohosh for menopause.
• Any herb, in principle, can interact with prescription medication or affect an existing condition.

None of this means herbs are dangerous. It means the safe move is simple: tell your doctor or pharmacist everything you take, including supplements, especially if you are on prescription medication, have a health condition, or are considering combining products. This one habit prevents the large majority of problems.

So, are they safe in perimenopause?

For most healthy women, a well-chosen herbal supplement is a safe option during the transition, and for many it is a valued one. The risks are real but manageable, and they cluster in two places: poor product quality and unchecked interactions. Address both, and you have removed most of the risk.

Put simply: choose a tested, transparent product from a company that shows its work, and loop in your doctor about anything you take alongside medication. Do that, and "is this safe" becomes a question you can answer yes to with real confidence. If you are comparing your options, start with the best menopause supplements: what to look for.

How Project M approaches this

Because this is exactly the standard we hold ourselves to, here is how The Shift is built to meet it.

The Shift is Project M's daily herbal protocol for perimenopause and menopause, built on a 600-year-old Traditional Chinese Medicine (TCM) formula and adapted for the modern Western woman. You can find it here. It is made in the USA in a facility following Good Manufacturing Practices. It is third-party tested, so what is on the label is what is in the bottle. It uses transparent labeling with every herb and amount disclosed, not a proprietary blend. And it was formulated and reviewed by a doctor of acupuncture and Chinese medicine. The formula also avoids the highest-interaction herbs like St. John's Wort, though the same rule still applies: if you take medication, especially thyroid medication, review it with your doctor first.

That is what choosing safely looks like in practice. The point is not to take our word for it. It is to give you the criteria to judge any product, ours included.

Frequently asked questions

Are herbal supplements FDA approved?

No. The FDA does not approve or test dietary supplements, including herbal ones, before they are sold. Under a 1994 law, supplements are regulated as a category of food, and the manufacturer is responsible for their safety and labeling. The FDA can remove an unsafe product, but usually only after it is already on the market. This is why third-party testing and transparent labeling matter so much when you choose.

How do I know if a supplement brand is trustworthy?

Look for four things: independent third-party testing or certification (such as USP, NSF, or published lab results), transparent labeling that lists every ingredient and its amount rather than a proprietary blend, manufacturing under Good Manufacturing Practices, and a real, credentialed company behind the product with clear sourcing. A brand that shows its work on all four is signaling that it takes quality seriously.

Can herbal supplements interact with my medications?

Yes, some can. Herbs are active compounds, and certain ones, such as St. John's Wort and black cohosh, are known to interact with medications or affect the liver. The safe habit is to tell your doctor or pharmacist about every supplement you take, especially if you are on prescription drugs, have a health condition, or are combining products. This simple step prevents most interaction problems.

Is it safe to take herbal supplements with HRT?

Often yes, but it depends on the specific herb and your situation, so this is a conversation to have with your doctor. Many women use herbal support alongside HRT because the two can address different symptoms. The key is making sure your prescriber knows everything you take so they can check for interactions and adjust if needed. Never assume a combination is fine without confirming.

What makes a menopause supplement safe to take daily?

Daily safety comes down to quality and fit. A product that is third-party tested for purity and potency, transparently labeled, made to good manufacturing standards, and appropriate for your health profile is designed for ongoing use. Beyond the product, confirm with your doctor that it does not conflict with your medications or conditions. Those two checks, quality and personal fit, are what make daily use safe.

Read next

• The best menopause supplements: what to look for
• Black cohosh for menopause: what the evidence shows
• The Shift vs. Thorne Meta-Balance: two herbal philosophies
• What is perimenopause: symptoms, stages, and timeline
• Our consumer research study results: full data

Sources

• FDA: Questions and Answers on Dietary Supplements
• Why third-party certification is important for dietary supplements (OPSS)
• NCCIH: Herb-drug interactions, what the science says