Optimum Nutrition Opti-Women

Multivitamin supplements typically feature a blend of vitamins and minerals that the body needs for optimal function. However, there is a growing trend for “multivitamin” supplements to also feature herbal ingredients that may offer a range of benefits, but are not essential for optimal function.

Below we take an in-depth look at Optimum Nutrition Opti-Women, to see what benefits this supplement offers consumers.

Optimum Nutrition Opti-Women Pros

  • Contains a range of vitamins and minerals

Optimum Nutrition Opti-Women Cons

  • Long list of side effects reported by customers
  • Chastberry and Dong Quai could interfere with effectiveness of contraceptive pill
  • Not available from Optimum Nutrition’s UK webstore
Watchdog Rejected

Optimum Nutrition Opti-Women

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Optimum Nutrition Opti-Women Overview

What You Need To Know About Optimum Nutrition Opti-Women

Optimum Nutrition Opti-Women is advertised as a multi-vitamin and mineral supplement designed specifically with women, but the ingredients list also features a number of different herbs as well. Chasteberry, one of the herbs that are used in this supplement, could reduce the effectiveness of the contraceptive pill, with some consumers of this product reporting changes in their menstrual cycle and spotting whilst taking this product.

What Are The Side Effects Of Optimum Nutrition Opti-Women?

Out of the thousands of customer reviews for this product, some reviewers have reported a range of side effects.

Numerous customer reviews mention that their urine becomes a bright yellow/neon yellow colour when taking this supplement. This is caused by the incredibly high Riboflavin (vitamin B2) content of this supplement, as the excess Riboflavin is expelled from the body via urine.

Other side effects reported by reviewers include headaches, heartburn, hot flashes, breakouts and acne, migraines, fatigue, night sweats, changes in menstruation (prolonged duration and heavier flow), nausea, vomiting, dizziness, a decline in sleep quality, mood swings, bloating, diarrhoea, brain fog, and itchy skin.

Worryingly, Chasteberry (Vitex agnus-castus) and Dong Quai could both reduce the effectiveness of the contraceptive pill. There is no warning about this on the product label or on the sales website.

How Much Does Optimum Nutrition Opti-Women Cost?

Optimum Nutrition Opti-Women can be purchased from the official Optimum Nutrition website. A bottle of 60 capsules costs $14.99, and a bottle of 120 capsules costs $25.99. Delivery charges may also apply.

Our Verdict On Optimum Nutrition Opti-Women

Overall, we are far from impressed by Optimum Nutrition Opti-Women. The list of side effects reported by consumers is long and varied. Two of the ingredients, Chasteberry, and Dong Quai, could reduce the effectiveness of the contraceptive pill; it is incredibly irresponsible of the manufacturers to not feature any kind of warning about this on the product label or sales websites, especially as this product is intended specifically for women. Although it is described as a multivitamin, it contains numerous herbal ingredients; these appear to be the cause of many of the side effects reported by consumers. The manufacturers do not even make it clear what the supposed benefits of these additional herbs and plant extracts are. Although the product is relatively cheap for supplements in general, the daily dosage of two capsules pushes up the cost per serving and makes this quite expensive for a multivitamin supplement.

The product is not covered by a money-back guarantee; the Optimum Nutrition returns policy covers opened bottle if less than 25% of the bottle has been used, and the returns policies of third-party retailers may vary.

Overall, we do not recommend Optimum Nutrition Opti-Women to our readers.

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Optimum Nutrition Opti-Women Key Features

Optimum Nutrition Opti-Women is a multi-vitamin and mineral supplement designed for women, that also features some added herbal ingredients. The manufacturers do not describe the purposes of the added herbal ingredients, but describe them as “speciality” ingredients. Dong Quai and Chasteberry can both interfere with the effectiveness of the oral contraceptive pill, and can affect hormone levels.

Optimum Nutrition Opti-Women Facts

  • Manufactured by Optimum Nutrition
  • Choice of 60 or 120 capsules per bottle
  • Suitable for vegetarians

Optimum Nutrition Opti-Women is manufactured by Optimum Nutrition, an American company who are based in Downers Grove, Illinois. They can be contacted using the information on their official website, or using any of their social media pages, which are all active and maintained. Optimum Nutrition pride themselves on maintaining a “Gold Standard”, with strict standards for “ingredients selection, quality control, lab testing and manufacturing processes”.

How to Take Optimum Nutrition Opti-Women

Directions for use are as follows:

Take two capsules per day

Optimum Nutrition Opti-Women Concerns:

  • Long list of side effects reported by customers
  • Chastberry could interfere with effectiveness of contraceptive pill
  • Not available from Optimum Nutrition’s UK webstore

What Does Optimum Nutrition Opti-Women Claim To Do?

The manufacturers provide the following description of the product’s benefits:

  • FEMALE-SPECIFIC MULTIVITAMIN – advanced formula to help support the overall health and active lifestyle of women*
  • 23 VITAMINS AND ESSENTIAL MINERALS helps provide the body with key nutrients*
  • 17 SPECIALTY INGREDIENTS – aids in creating a comprehensive and multifaceted multivitamin for the active woman
  • AVAILABLE IN 60 AND 120 CAPSULE BOTTLES – Vcaps used are Vegetarian Society approved

Does Optimum Nutrition Opti-Women Work?

As a multivitamin, this product should work as described. The amounts of many of the vitamins are incredibly high; hundreds of customer reports of neon yellow urine show that the body cannot absorb the incredibly high dosage of Riboflavin, and excess amounts are expelled in the consumer’s urine. It is likely that this also applies to other vitamins in this blend as well.

The manufacturers do not actually specify that the intended purpose or benefits are of the additional 17 “speciality” ingredients, beyond stating that they are “for the active woman”. It is difficult therefore to establish whether this product actually ‘works’.

There are numerous reviewers who experienced a range of unpleasant side effects.

What Are The Ingredients of Optimum Nutrition Opti-Women?

The ingredients found in Optimum Nutrition Opti-Women are detailed below. The ingredient quantities provided are per serving of two capsules.

  • Vitamin A (as beta carotene, vitamin A palmitate) 5,000IU 100% RDA)
  • Vitamin C (as ascorbic acid) 250mg (417% RDA)
  • Vitamin D (as cholecalciferol) 600IU (150% RDA)
  • Vitamin E (as d-alpha tocopheryl succinate) 100IU (333% RDA)
  • Vitamin K (as phytonadione) 80mcg (100% RDA)
  • Thiamin (as thiamin hydrochloride) 20mg (1333% RDA)
  • Riboflavin 20mg (1176% RDA)
  • Niacin (as niacinamide) 20mg (100% RDA)
  • Vitamin B6 (as pyridoxine hydrochloride) 20mg (1000% RDA)
  • Folic Acid 600 mcg (150% RDA)
  • Vitamin B12 (as cyanocobalamin) 100mcg (1667% RDA)
  • Biotin 250mcg (83% RDA)
  • Pantothenic Acid (as d-calcium pantothenate) 20mg (200% RDA)
  • Calcium (as calcium carbonate, citrate) 150mg (15% RDA)
  • Iron (as iron A.A. chelate) 18mg (100% RDA)
  • Iodine (as kelp) 200mcg (133% RDA)
  • Magnesium (as magnesium oxide, aspartate) 75mg (19% RDA)
  • Zinc (as zinc citrate) 15mg (100% RDA)
  • Selenium (as selenomethionine) 70mcg (100% RDA)
  • Copper (as copper gluconate) 2mg (100% RDA)
  • Manganese (as manganese gluconate) 5mg (250% RDA)
  • Chromium (as chromium GTF) 120mcg (100% RDA)
  • Molybdenum (as molybdenum A.A. chelate) 70mcg (93% RDA)
  • Dong Quai (Angelica sinensis) 4:1 Root Extract 80 mg: Also called female ginseng, this plant could affect hormone levels, especially in women. It could help to relieve the symptoms of menopause, but it could also reduce the effectiveness of the contraceptive pill. Source
  • Chasteberry (Vitex agnus-castus) 4:1 Berry Extract 50 mg: Also known as ‘the woman’s herb’, this ingredient is used to reduce the symptoms of PMS, as well as to improve menstrual cycle irregularities. It is also used to treat acne, upset stomach, headaches, and swelling, although in general, it is under-researched. It could lower the effectiveness of the contraceptive pill. Chaste Tree also appears to lower the sex drive, reportedly being used by monks to help them keep their vows of celibacy; this is the reason the shrub is called the Chaste Tree. Source
  • Garcinia Extract (Garcinia cambogia) (rind) (standardized to 52% HCA) 50 mg: Test tube and animal research suggest that Hydroxycitric Acid (HCA), an active compound in Garcinia Cambogia, may be helpful in weight loss because of its effects on metabolism. However, numerous studies in humans have found it has no effect upon either appetite or metabolic rate. Source
  • Uva Ursi, powdered (leaf) 50 mg: Uva Ursi is used to treat constipation, amongst other ailments. It can also have an astringent effect upon tissues in the body. It is possible that this leads to the user looking temporarily thinner, as their skin becomes dehydrated, allowing muscles to stand out more. Source
  • Horse Chestnut Extract (Aesculus hippocastanum) (root) (standardized to 20% aescin) 25 mg: Aescin is a type of saponin that has demonstrated anti-inflammatory, vasoconstrictor, and vasoprotective effects in lab tests. Source
  • Alpha Lipoic Acid 20 mg
  • Butchers Broom, powdered (root) 15 mg: Could improve circulation. Source
  • Ostivone (as isopropoxy isoflavone) 10 mg
  • Grape Seed Extract (Vitis vinifera) (seed) (standardized to 95% polyphenols) 10 mg: antioxidants found in grape seed are thought to improve poor circulation and cholesterol levels. Source
  • Deodorized Garlic, powdered (bulb) 10 mg
  • Citrus Bioflavonoids (fruit) 10 mg
  • Soy Isoflavones 2 mg: Thought by some to be useful in reducing symptoms of the menopause.
  • Lycopene (as LYC-O-MATO natural tomato lycopene) 250 mcg: An antioxidant found in tomatoes.
  • Lutein 250 mcg: Related to vitamin A, this vitamin is often referred to as the ‘eye vitamin’. It could help to prevent or treat some eye-related health problems, and is found as a colour pigment in the human eye, potentially filtering light to protect the eye from sun damage. Source
  • Alpha-Carotene 93.5 mcg
  • Cryptoxanthin 22.8 mcg
  • Zeaxanthin 18.7mcg

Does Optimum Nutrition Opti-Women Have Any Side Effects?

There are numerous ingredients found in this supplement that could potentially cause a range of side effects.

Worryingly, Chasteberry (Vitex agnus-castus) and Dong Quai could reduce the effectiveness of the contraceptive pill. There is no warning about this on the product label or on the sales website. There are also several ingredients that may mimic oestrogen in the body, making this supplement unsuitable for anyone who has or had breast cancer or other oestrogen-related cancers.

Horse chestnut extract can cause dizziness, headache, stomach upset, and itching. Unprocessed horse chestnuts cannot be eaten as they are poisonous.

Garcinia Cambogia can cause some side effects including nausea, digestive tract discomfort, and headache. Its long-term safety is unknown, as clinical studies typically focus on the short-term use of up to 12 weeks.

Uva Ursi is a laxative, and so could increase bowel movements, and could cause diarrhoea, stomach pains and cramping. Long-term use of laxatives can cause dependence. In some cases (especially when dehydrated), the use of laxatives can actually cause or worsen constipation. Uva Ursi can cause vomiting and can turn urine a greenish-brown colour. Taking Uva Ursi regularly long-term or taking very high doses can cause liver damage, respiratory problems, vision problems, convulsions, and even death.

Not suitable for pregnant or breastfeeding women. Not suitable for anyone under the age of 18. Not suitable for anyone who uses the contraceptive pill, as Chasteberry could lower its effectiveness. If you have or have had breast cancer or ovarian cancer, consult your doctor before purchase. If you are unsure about the suitability of this supplement for you, consult your doctor before purchase.

Are There Any Customer Reviews For Optimum Nutrition Opti-Women?

There are thousands of customer reviews for this supplement across the numerous online retailers that stock it.

My pee is neon yellow, I’m getting all my nutrients for sure, feel more energetic with this. Update: This has induced an “old”/“darker period

Horrible. I felt very nauseous and bloated after taking these pills. I also had a huge migraine. Caused me to have spotting.

Does Optimum Nutrition Opti-Women Offer a Money-Back Guarantee?

When purchased directly from the official Optimum Nutrition website, Optimum Nutrition Opti-Women is covered by a generous returns policy, which lasts for 30 days from the date of purchase. Some opened products are accepted, but only if less than 25% of the product has been used. This policy allows customers to try the product out without risk, but prevents abuse of the returns policy. Customers should contact Optimum Nutrition to get an RMA code before sending products back to the company.

The returns policies of third-party retailers may vary.

Where Can I Buy Optimum Nutrition Opti-Women?

Optimum Nutrition Opti-Women can be purchased from the official Optimum Nutrition website. A bottle of 60 capsules costs $14.99, and a bottle of 120 capsules costs $25.99. Delivery charges may also apply. Opti-Women is not available from the UK version of the website, but it is available from numerous third-party retailers, some of whom ship to the UK.

Optimum Nutrition Opti-Women can be purchased from Amazon, where a bottle of 60 capsules costs $12.95 and a bottle of 120 capsules costs $14.87. Delivery charges may also apply. The product is also available from Dolphin Fitness, where a single bottle of 60 capsules costs £12.95, and a bottle of 120 capsules costs £20.95. Customers ordering in bulk are given a small discount of 2.5%.

iHerb offer a bottle of 120 capsules for £15.26, and a bottle of 60 capsules for £8.69. Delivery charges may also apply.

How does Optimum Nutrition Opti-Women compare to Phentaslim?

Criteria Optimum Nutrition Opti-Women Comparison Phentaslim comparison
Clinically Proven Ingredients
Side Effect Free
Positive Customer Reviews
24/7 Support
Money-back Guarantee

The Diet Pills Watchdog does not recommend Optimum Nutrition Opti-Women.

Optimum Nutrition Opti-Women

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Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

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