Sisu

Name

Sisu

Legal name

Sisu

Website

https://sisu.com

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

11–50 employees

Short description

Sisu is a Canadian nutritional supplements company that has operated for over 35 years, serving health-conscious Canadian consumers across immune, bone, heart, digestive, and women's, men's, and children's health categories through retail and online resellers.

Ownership category

akta.pro rank

Product category

Nutritional Supplements

SIC

Miscellaneous Food Preparations & Kindred Products (2090), Medicinal Chemicals & Botanical Products (2833)

akta.pro primary industry

Specialty Condition Supplements (Sleep, Stress, Heart, Joint, Gut, Immunity) (CRADAGAE)

akta.pro secondary industries

Multivitamins & Daily Packs (CRADAGAC), Women’s Health Supplements (Prenatal, Menopause, Hormonal) (CRADAGAK), Children’s Vitamins & Supplements (CRADAGAJ), Functional Foods & Supplement Formats (Gummies, Chews, Powders, Shots) (CRADAGAI)

Keywords

• Nutritional supplements
• Vitamin C products
• Bone joint health
• Immune support supplements
• Prenatal vitamins

Headquarters

HQ city

Richmond Hill

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Others

Revenue model

1. Nutritional Supplement Sales: Sisu generates revenue through the sale of nutritional supplements including vitamins, minerals, herbal extracts, and specialty health products. Products are sold through retail channels (pharmacies, health food stores, grocery stores) and online retailers across Canada. Consumers purchase individual products as one-time purchases or recurring needs.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Sisu crafts and brands nutritional supplements including vitamins, minerals, and herbal extracts, anchored by its flagship Ester-C® patented buffered vitamin C line available in capsules, tablets, chewables, powders, and drink mixes. The portfolio spans Bone & Joint, Heart, Digestive, Immune, Kids', Men's, and Women's Health categories, with additional prenatal and multivitamin ranges. Products are sold in Canada through retail pharmacies, natural product stores, grocery chains, and third-party online retailers.

Product overview

Sisu is a Canadian nutritional supplement company with over 35 years of experience, offering a comprehensive portfolio of vitamin, mineral, and herbal supplement products. The core product line centers around Ester-C, a patented buffered form of vitamin C with superior bioavailability, available in multiple formats (capsules, tablets, chewables, powders, and drink mixes). Beyond the flagship Ester-C line, the company offers specialized supplements across key health categories: Bone & Joint Health (Calcium & Magnesium, Vitamin D), Digestive Health (Probiotics, Enzymes), Heart Health (CoQ10, Omega fatty acids), Eye Health (Lutein), Liver Health (Milk Thistle), and Immune Health (NAC, L-Lysine, Echinacea). The company also maintains dedicated product lines for specific demographics including Kids' Health (Kids Ester-C, U-Cubes Multi gummies, Teens Multi) and Women's Health (prenatal vitamins, multivitamins). Products are manufactured with clinically researched ingredients and branded extracts like FloraGLO lutein and NovaSOL curcumin, with an emphasis on non-GMO, gluten-free formulations and pharmaceutical-grade recyclable packaging.

Differentiator

Problem solved

Functional benefit

Brands

• Ester-C: Proprietary vitamin C formulation and flagship brand ingredient used in Sisu products. Registered trademark of The Ester C Company.

Products and services

• Ester-C® Vitamin C Line Patented, buffered form of vitamin C less acidic than regular vitamin C, with 24-hour retention in immune cells. Available in multiple strengths (1000 mg, 600 mg, 500 mg chewable, 250 mg chewable) and formats including Energy Boost drink mix and Cold & Flu Rescue combination formulas for Canadian adults and children.
• NAC 600 mg N-acetyl-L-cysteine supplement designed to reduce respiratory infection symptoms, support immune function, and help replenish glutathione levels. Targeted at adults seeking respiratory and antioxidant support.
• L-Lysine Essential amino acid supplement intended to reduce the recurrence and severity of cold sores and accelerate healing. For adults prone to cold sore outbreaks.
• Cold & Flu Rescue with Ester-C® Fast-acting combination of Ester-C, andrographis, NAC, and echinacea formulated to boost immune health and reduce severity and duration of cold and flu symptoms in adults.
• Calcium & Magnesium 1:1 Calcium citrate and magnesium oxide supplement combined with vitamin D3 designed to prevent bone loss and improve bone density. Formulated as an easy-to-digest format for adults seeking bone health support.
• Calcium & Magnesium Citrates (Liquid) High-potency liquid calcium and magnesium supplement with vitamin D3 for bone density support and bone loss prevention, formulated as a strawberry-flavoured liquid suitable for both children and adults.
• Magnesium 250 mg Relaxation Blend Magnesium bisglycinate and citrate powder combined with GABA and L-theanine to temporarily promote relaxation, improve sleep quality, and ease stress effects. For adults seeking stress and sleep support.
• Vitamin D 1000 IU Vitamin D3 fast-melt tablets providing 1000 IU from lanolin-derived vitamin D for immune support and bone health. For adults and children requiring vitamin D supplementation.
• Vitamin D 2500 IU Maximum potency vitamin D3 supplement providing 2500 IU to help prevent vitamin D deficiency, available in tablets and softgels for adults requiring higher-dose supplementation.
• Lutein 20 mg Eye health supplement containing FloraGLO lutein designed to nourish and protect eye tissue, slow age-related macular degeneration, and protect against free-radical damage. For adults concerned with long-term eye health.
• Full Spectrum Curcumin Patented water-soluble curcumin supplement using NovaSOL® technology to deliver superior bioavailability compared to fat-soluble curcumin forms, supporting inflammatory response and joint health.
• Broad Spectrum Milk Thistle High-potency blend of standardized milk thistle seed extract and raw whole-herb powder formulated to support liver function. Non-GMO and gluten-free formulation for adults seeking liver health support.
• U-Cubes Multi (Kids' Gummy Multivitamin) Vegan multivitamin gummies for children providing essential vitamins and minerals, naturally sweetened with organic beet sugar. For parents seeking a daily multivitamin in a child-friendly format.
• Teens Multi (Chewable Multivitamin) Full-range chewable multivitamin for teenagers containing vitamins, minerals, extra B vitamins for stress management, and vitamin A for skin health. For parents seeking a daily multivitamin for adolescents.
• Kids Ester-C® 250 mg Chewable Kid-friendly chewable vitamin C to strengthen the immune system, with naturally sweetened orange and wildberry formulas designed to be gentle on tooth enamel. For children who have difficulty swallowing pills.
• Multi Expecting (Prenatal Vitamins) Full range of vitamins and minerals formulated to support women's nutritional needs before, during, and after pregnancy. Targeted at women planning pregnancy, currently pregnant, or in postpartum recovery.
• Supreme Multi Expecting (High-Potency Prenatal) Higher dose prenatal vitamins and minerals formulated for active women's nutritional needs during pregnancy. For expecting mothers requiring more intensive nutritional support.
• Multi Active (Women's Daily Multivitamin) Full complex of vitamins and minerals formulated to support the daily nutritional needs of active women. For adult women seeking a comprehensive daily multivitamin.
• Supreme Multivitamin Daily multivitamin and mineral supplement with high-potency B vitamins formulated to help manage daily stress and support overall health. For adults seeking a premium daily multivitamin.
• Supreme Multivitamin 50+ Full complex of vitamins, trace minerals, and nutrients including CoQ10 and lutein formulated specifically for adults over 50 to address age-related nutritional needs.
• Ester-C® Energy Boost Drink Mix Daily vitamin drink mix combining 1000 mg Ester-C with B vitamins and electrolytes, available in orange, berry, and citrus-lime flavours. For adults seeking immune and energy support in a drinkable format.

Quantifiable outcome

• Ester-C® remains in immune cells (white blood cells) for up to 24 hours, providing sustained immune support
• +2 more outcomes

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered minor.

• Canadian Vitamin ShopminorChannel Partner/ Reseller/ DistributorOnline retailer partner distributing Sisu nutritional supplements to Canadian consumers through its e-commerce platform.
• Well.caminorChannel Partner/ Reseller/ DistributorMajor Canadian online health and wellness retailer carrying Sisu products for consumer purchase.
• YesWellnessminorChannel Partner/ Reseller/ DistributorOnline wellness retailer partner selling Sisu supplement products to Canadian consumers.
• Healthy Planet CanadaminorChannel Partner/ Reseller/ DistributorCanadian online health store retailer distributing Sisu nutritional supplements.
• VitaMartminorChannel Partner/ Reseller/ DistributorOnline Canadian retailer partner for Sisu supplement products.
• Nature's SourceminorChannel Partner/ Reseller/ DistributorNatural health products retailer carrying Sisu supplements in Canada.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Jamieson Wellness: Canada's largest manufacturer of branded vitamins, minerals, and supplements. Directly comparable to Sisu in category, customer base (Canadian pharmacy and grocery), and ingredient-positioning strategy.
• Natural Factors: Canadian-based nutritional supplement manufacturer with a broad vitamin, mineral, and herbal portfolio sold across Canadian health food and pharmacy channels — the same channel footprint as Sisu.
• Webber Naturals (Factors Group): Canadian supplement brand (under Factors Group) with overlapping vitamins, minerals, and specialty supplement SKUs sold in the same Canadian pharmacy and health retailer channels as Sisu.
• CanPrev Natural Health Products: Canadian practitioner-grade supplement brand with a comparable vitamin, mineral, and specialty health portfolio; competes directly with Sisu's immune, women's health, and bone/joint lines.
• NOW Foods: Large US-based supplement manufacturer with extensive vitamin, mineral, herbal, and specialty supplement portfolio; comparable in product breadth and ingredient-quality positioning to Sisu.

Emerging players

• Thorne: Premium practitioner-channel supplement brand with a strong DTC/online presence; comparable to Sisu in clinically validated, science-led ingredient positioning but stronger in DTC and subscription.

Broad incumbents

• Life Extension: Long-standing US premium supplement brand with a science-driven, clinically validated ingredient portfolio that overlaps with Sisu's bone, joint, immune, and specialty health lines.
• Pure Encapsulations (Nestlé Health Science): Hypoallergenic practitioner-grade supplement brand under Nestlé Health Science — same corporate parent as Sisu and overlapping vitamin/specialty health positioning, though skewed to practitioner channel.
• Garden of Life (Nestlé Health Science): Nestlé Health Science's organic/non-GMO supplement brand; sister brand to Sisu under Atrium Innovations with overlapping dietary supplement portfolio and regulatory positioning.
• Nature's Bounty: Mass-market US vitamin and supplement manufacturer with a broad vitamin, mineral, and specialty health portfolio; comparable category overlap to Sisu, though with larger scale and broader US retail penetration.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/sisuvitamins
• Xx.com/SISUVitamins
• Facebookfacebook.com/sisuvitamins
• LinkedInlinkedin.com/company/sisu-vitamins

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sisu