Best Vitamin B (Inositol) Supplements Under $100 (2026)
We selected supplements under $100 based on formulation (myo- vs d-chiro inositol and combinations), serving size, customer ratings, ingredient transparency, and an overall value score
Top Picks
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1
Myo-Inositol & D-Chiro 40:1 for Women | Inositol Supplement
Inositol blend for women's hormonal balance and ovarian support in a 40:1 ratio. Clinically studied for PCOS, fertility, and cycle regularity. Customer feedback notes mood improvements and more stable cycles
- 40:1 inositol ratio
- women-focused formulation
- ratings reflect broad user satisfaction
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2
Cell Forte IP-6 & Inositol Immune Support (120 capsules)
Immune-support supplement featuring IP-6 and inositol with minerals. Supports immune function and natural killer-cell activity; easy-to-swallow, gluten-free and vegan. Customers note effective immune support and quality
- IP-6 & inositol for immune support
- Natural killer-cell activity support
- Minerals per serving (calcium, phosphorus, magnesium)
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3
Myo-Inositol & D-Chiro Inositol Supplement for Hormonal Balance
Myo-Inositol & D-Chiro Inositol supplement formulated for hormonal balance and ovarian support. Includes ideal 40:1 ratio, vegan and dye-free, with 90 servings. Customers note improved mood and cycle regulation, with mixed experiences on cramps and acne
- optimal 40:1 ratio
- gmp-certified facility
- vegan & dye-free formula
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4
Optify Inositol supplement for women (90-day) 360 capsules
Inositol supplement balancing hormones and supporting ovarian function with a 40:1 Myo-Inositol to D-Chiro Inositol ratio, folate, and vitamin D. Clinically studied and reported to aid cycle regularity and mood. Customer note: effective for hormone regulation and acne reduction
- 40:1 inositol ratio
- folate and vitamin D added
- clinically studied with reported cycle benefits
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5
Myo-Inositol & D-Chiro Inositol Powder for Hormone Balance (40:1) 60 serv
Myo-Inositol & D-Chiro Inositol powder supports women's hormone balance and ovarian health with a 40:1 ratio. Customers note it helps with cycle regulation and is gentle on the stomach
- premium women's hormone balance
- ideal 40:1 ratio
- supports ovulation and menstrual comfort
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6
Myo-Inositol & D-Chiro Inositol for Hormone Balance 40:1 (Myo 2000mg, D-Chiro 50mg) - 240 Count
Hormone balance supplement for women supporting menstrual cycle and ovarian health with a 40:1 ratio. Customers report PCOS support, improved cycle regularity, and gentle digestion
- premium women's hormone balance blend
- premium 40:1 ratio formulation
- supports ovulation and cycle comfort
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7
Life Extension Inositol Caps 1000 mg – Myo-Inositol
Inositol capsules support mood and hormone balance with plant-derived nutrients that influence neurotransmitters like dopamine and serotonin. Customers note improved sleep quality and calmer mood for some users
- Mood and hormone support
- Non-GMO, gluten-free
- Vegetarian capsules
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8
Myo-Inositol Supplement for Women and Men
Fertility-focused myo-inositol supplement for both women and men with vegan, gluten-free capsules. Supports hormone balance and reproductive health, plus immune function. Customers note mood support and appetite control benefits
- supports healthy ovulation
- antioxidant inositol for reproductive health
- free from common allergens
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9
IP6 Gold Immune Support Formula (Inositol Hexaphosphate) – 240 capsules
IP6 Gold Immune Support Formula delivers IP6 and inositol for immune support. Third-party tested and non-GMO certified. Customer note: improved immune system with energy and mood benefits; some report constipation variability
- non-gmo certified
- third-party tested materials
- pure IP6 and inositol from Japan
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10
Myo-Inositol & D-Chiro Inositol Powder 2lb (40:1) for Hormonal Balance
Myo-Inositol & D-Chiro Inositol powder blend designed for women's hormonal support. 40:1 ratio with 2,000mg myo-inositol and 50mg d-chiro per dose. Users report improved energy and more regular cycles
- premium 2-in-1 inositol formula
- large 2 lb pouch with 442 servings
- exact 40:1 ratio for balance