Shopping cart

Crystal Star Natural Supplements FAQs

As you begin your holistic journey with Crystal Star, you’ll likely have questions on which ingredients will enhance your lifestyle and satisfy your nutritional needs, as you age. If you’re curious which vitamin supplements are best for pregnant women or how herbal supplements for libido work, we have the answers and resources you need to help you feel confident and stay informed.  Always be sure to talk with a healthcare professional before starting any supplement or wellness program if you are taking medications or have a medical condition.

When did Dr. Linda Page start Crystal Star®?

Dr. Linda Page, traditional naturopath, and world-renowned herbalist, founded Crystal Star Herbal Nutrition in 1978 and since that time has developed dozens of herbal healing formulas.  In 1996, Dr. Page received six of the first-ever United States Patents for herbal supplements for her female hormone-balancing formulas. Four of these formulas remain top-sellers today: Est-Aid™ (renamed ESTRO-G Balance); Easy Change™Women's Best Friend™Female Harmony.

Herbs support the normal functioning of body systems. They contain bioavailable nutrients and therapeutic constituents (such as volatile oils, steroidal saponins, and antioxidants) that the body uses to support its own natural balance. Whole herb blends have been used safely and effectively for centuries and are increasingly supported by Western clinical research.

We receive this question all the time, and yes, our formulas can be used together! In fact, many customers use a variety of our products regularly. We recommend using 2-4 Crystal Star formulas at a time for the best results.

Crystal Star products can be used with many other types of supplements such as multivitamins, minerals like calcium or magnesium, amino acids, and collagen. There are very few known interactions between herbs and other supplements.

Using whole herb blends offers significant benefits compared to concentrated herbs. Here are a few reasons why:

Herbal blends generally use whole herbs. This means the whole plant or the part of the plant that’s used in the formula (a.k.a. herb constituent) has not been altered beyond basic preparation techniques (dried, powdered, extracted).

Whole herbs are processed by the body in the same way that foods are. This offers a protective benefit, and is a primary reason why an expertly developed herbal blend is much less likely to produce side effects or cause interactions than more potent preparations or concentrated herbs.

An herbal blend addresses multiple body systems. We include herbs to address primary symptoms and secondary concerns, as well as the catalytic herbs that help deliver these nutrients to the body. Using an herbal blend also helps minimize potential side effects or interactions associated with high doses of single herbs or concentrated herbal extracts.

We cannot guarantee product potency after expiration. There are many variables involved that are out of our control after shipment, including storage conditions, exposure to heat, light or humidity. However, for most whole herb blends (caps, tea, or extracts): If the product is kept securely closed and in a cool, dry environment, it can often be potent for up to 1-2 years after the expiration date.

While drug herb interactions are rare, they do happen. It’s important to share any supplements you’re using with a trusted healthcare professional if you’re using medications or have a medical condition. You can also learn more about drug herb interactions on our blog: Drug-Herb-Nutrient Interactions: Facts You Need to Know

Unless otherwise specified on the directions on the label, you can take Crystal Star products with food or on an empty stomach. For ease of digestion, many customers take our products with food.

Our labels provide Suggested Use information on how long to use each product. Many formulas work within a few days to a week, while others can take several months. Some formulas can also be taken as needed for maintenance.

Unless specifically stated on the product label, most Crystal Star products are not for use during pregnancy. Blends like Female Harmony and Conceptions Tea can be used for preconception, but should be discontinued when you become pregnant. Please note that when you conceive, you should begin to receive prenatal care and work with an experienced doctor or midwife.

Men's Libido is designed to support sexual interest, arousal, and energy. Male Performance was formulated to support muscle and cardiovascular health for overall endurance and recovery.
It’s safe to use both products together, but we recommend starting with one. If, after one month you feel that you could use additional support, feel free to add the second product to your routine.

We suggest following an herbal cleanse 2-4 times a year for the best results. If you want to follow multiple cleanses (like liver and colon), we recommend giving your body a break of one month between your programs. To increase the positive results, drink plenty of water and follow a whole foods diet.  Long, unsupervised cleanses can deplete the body of critical nutrients.

In the case of fibroids, we suggest you first consult with a health professional to determine the treatment that's right for you. Very large fibroids or multiple fibroids may require a medical approach. However, whole-herb combinations can be helpful for some women because they can support healthy uterine tissue. Here's our suggested program: Take Women's Best Friend™ during your period then switch to Fibro Defense™ in-between your period. Sticking to a plant-based diet also eases symptoms for many women. For more information check out our blog Don't Wait Out Uterine Fibroids.

We recommend you take Fibro Defense before and after your period, 2 capsules twice a day for two-to-four months. While on your period, you may switch Women's Best Friend to help ease discomfort.For best results, rotate these two products for three months. You may see a noticeable difference within three months, but some women need to take it for five or six months. After you have taken these products for at least three full cycles, we suggest you follow this protocol for one cycle every 3-4 months for maintenance.

In our rebranding efforts, we set out to make our product line easier for everyone to understand and to use. We spent over a year reviewing every product and label with our herbalist so that we were clearly communicating exactly what each product does, when you should take them, and how much you should take. 

As one of  our oldest and most popular products, Women’s Best Friend has undergone several changes over the years. Women’s Best Friend was designed by Dr. Linda Page as a menstrual support product but, somewhere over the course of 40 years and several owners, the suggested use became more generic.  After reviewing the properties of each ingredient, we decided to revise the suggested use directions in order to maximize the formula’s efficacy and honor its original intent.

Our mission is to ensure gentle but powerful results at the best value possible.   We are, and have always been, fully committed to providing the high-quality products to help you lead your healthiest life.

While it’s true that some herbs like dong quai, red clover, and licorice contain natural phytoestrogens (estrogen-like compounds), moderate intake of these herbs in their whole form won’t increase your body’s estrogen above normal levels.

Research suggests phytoestrogen activity from whole herbs is very mild. Research published in The Journal of Steroid Biochemistry and Molecular Biology reveals phytoestrogens are only around 1/400th to 1/1000th of the potency of your body’s naturally circulating estrogen.

Because they are low in potency, if they bind to the body’s hormone receptor sites, the net effect for many women is actually lower estrogen levels. However, for women with very low estrogen, phytoestrogens may modestly shore up levels by binding to estrogen receptor sites.

Still, if you have an estrogen-based health problem, it’s a good idea to talk to your doctor before using herbs that can affect hormone balance. Other products on the market use concentrated sources of phytoestrogens, or may be otherwise inappropriate for your unique health needs.

St. John’s wort is known for its mood-elevating properties, but it can interfere with many prescription medications such as antidepressants, antibiotics, birth control pills, blood pressure medication, organ transplant medication, HIV medication, anticonvulsants, blood thinners, and asthma medication. We suggest any person taking prescription drugs or preparing for surgery consult with their physician before using St. John's wort or blends containing St. John’s wort.

Crystal Star formulas that contain small-to-moderate amounts of St. John’s wort include Mood Lift, Crave Eze, Tummy Control, Tension Relief, Muscle Relax, Thin After 40, and Fat & Sugar Detox.

Bladder Comfort is for people who are prone to urinary tract health concerns. It contains herbs that cleanse and support bladder and kidney health. Bladder Support is designed to encourage normal urinary muscle elasticity and tone for people with occasional bladder leakage concerns.

For herbal schools, Michael Tierra’s East West School of Herbology and David Winston’s Center for Herbal Studies. For aspiring naturopaths, Trinity School of Natural Healing is a good choice.

Another great resource: American Herbalist Guild at www.americanherbalistguide.com


Yes, our products are tested for heavy metals including lead, mercury, cadmium, and arsenic. Our products fall well within internationally-recognized standards in the industry (United States Pharmacopeia, (see page 12) and the American Herbal Products Association.

Proposition 65 (a.k.a. Prop 65) is a California law originally designed to protect both citizens of California and the state’s drinking water from exposure to a wide range of potentially harmful synthetic and natural substances. 

Prop 65 applies to metals such as arsenic, cadmium, lead, and mercury, which Prop 65 defines as reproductive toxins. Prop 65 also identifies arsenic, lead, and cadmium as carcinogens. These metals are found in soils all over the world and are both naturally occurring and a byproduct of human agriculture and industry over the centuries.  

Because these metals contaminate soil worldwide, there’s a chance that all plants--even organically farmed ones--may be exposed to them as they grow.  For that reason, companies that sell products manufactured from plants (including herbs) must test for toxins and include a Prop 65 disclaimer on their labels regardless of what these results show.

In compliance with Prop 65, Crystal Star has listed this warning on our product labels. This does not mean that the product is unsafe. For specific information on Prop 65 please visit: www.p65warnings.ca.gov/


Contact Crystal Star Today!

For more answers to your questions, speak to one of our herbalists today.

Contact Crystal Star