Doctor's Best Fully Active Folate with Quatrefolic, 400 mcg, 90 Vegetarian Capsules

Home Doctor's Best Fully Active Folate with Quatrefolic, 400 mcg, 90 Vegetarian Capsules

Doctor's Best Fully Active Folate with Quatrefolic, 400 mcg, 90 Vegetarian Capsules

$43.51

Delivery & Return Ask a Question

Dresses Size Chart

Dress Size Chart (Inch)

DRESSES SIZE IN INCHES
SIZE	US / CAN	BUST	WAIST	HIPS
XS	0	31"-32"	24"-25"	34"-35"
S	2-4	33"-34"	26"-27"	36"-37"
M	6-8	35"-36"	28"-29"	38"-39"
L	10-12	37"-39"	30"-32"	40"-42"
XL	14	40"-42"	33"-35"	43"-45"

Dress Size Chart (cm)

DRESSES SIZE IN CM
SIZE	US / CAN	BUST	WAIST	HIPS
XS	0	78.7-81.2	60.9-63.5	86.3-88.9
S	2-4	83.8-86.3	66-68.5	91.4-93.9
M	6-8	88.9-91.4	71.1-73.6	96.5-99
L	10-12	93.9-99	76.2-81.2	101.6-106.6
XL	14	101.6-106.6	81.2-88.9	109.2-114.3

Swimwear Size Chart

Dress Size Chart (Inch)

SWIMWEAR SIZE IN INCHES
SIZE	US / CAN	BUST	WAIST	HIPS
XS	0	31"-32"	24"-25"	33"-34"
S	2	33"-34"	26"-27"	35"-37"
M	4	35"-36"	28"-29"	37"-38"
L	6	37"-39"	30"-32"	39"-41"
XL	8	40"-42"	33"-35"	42"-44"

Shoes Size Chart

US	EURO	UK	AUS	JAPAN	CHINA
5	35-36	3	3.5	21.5	35
5.5	36	3.5	4	22	35.5
6	36-37	4	4.5	22.5	36
6.5	37	4.5	5	23	36.5
7	37-38	5	5.5	23.5	37
7.5	38	5.5	6	24	37.5
8	38-39	6	6.5	24.5	38
8.5	39	6.5	7	25	38.5
9	39-40	7	7.5	25.5	39
9.5	40	7.5	8	26	39.5
10	40-41	8	8.5	26.5	40
11	41-42	9	9.5	27.5	41

Delivery

Orders are generally processed within 1–3 business days. Standard delivery to addresses in Canada usually takes approximately 5–15 business days after dispatch.

Tracking information will be sent by email when it becomes available. Delivery times are estimates and may be affected by carrier delays, customs, severe weather or circumstances outside our control.

Prices are displayed in Canadian dollars.
Applicable taxes and shipping charges are calculated at checkout.
Orders may be delivered in more than one shipment.
Please verify your shipping address before completing your order.

Returns & Refunds

Return requests must be submitted within 30 days of delivery. Vitamins, supplements and other health-related products must be unused, unopened, sealed and returned in their original packaging.

Opened or used products cannot be returned for health and safety reasons, unless the item arrived damaged, defective or incorrect. Damaged, defective or incorrect items should be reported within 48 hours of delivery.

Customers are responsible for return shipping costs for unwanted or change-of-mind returns. A restocking fee of up to 20% may apply where permitted. Original shipping charges are non-refundable unless the return results from an error on our part.

Refunds are issued to the original payment method after the returned item has been received and inspected. Please allow up to 7 business days for the refund to be processed.

Approved Return Address
Fullfillonus #1202
1128 Lexington Ave, Bldg 4 E
Rochester, New York 14606
United States

Please contact us before sending a return. Returns sent without prior authorization may be delayed, rejected or returned to the sender.

Need Help?

For questions about an order, delivery, return or refund, contact our customer support team and include your order number.

Email: info@cloverlight.net

Vitamin4CA.com is operated by Cloverlight LLC.

Doctor's Best Fully Active Folate with Quatrefolic, 400 mcg, 90 Vegetarian Capsules

$43.51

Description
Additional Information

Who Should Consider Adding Folate to Their Routine?

Discover Doctor'S Best Fully — Folate is particularly important for women of reproductive age, especially those planning a pregnancy, as it supports fetal neural tube development. Individuals with MTHFR gene variants, older adults with reduced absorption, and those aiming to support cardiovascular health through healthy homocysteine levels may also find this supplement beneficial. Vegans and vegetarians might consider supplementing since dietary sources like liver are often absent from plant-based diets. As always, consult your healthcare practitioner before starting any new supplement, particularly if you have a medical condition or are taking medications.

What Makes Quatrefolic® Different from Ordinary Folic Acid?

Folate supplements are not all the same. Doctor's Best Fully Active Folate uses Quatrefolic®, a patented form of (6S)-5-methyltetrahydrofolate (5-MTHF) — the biologically active form your body can use directly. Unlike synthetic folic acid, which needs liver conversion, Quatrefolic® is already active. This makes it particularly helpful for people with MTHFR gene mutations who may struggle to convert folic acid. Additionally, Quatrefolic® boasts superior stability and water solubility for consistent potency and absorption.

Health Benefits of Doctor's Best Fully Active Folate

Folate is essential for many bodily functions. As a water-soluble B vitamin, it contributes to normal red blood cell formation, immune function, and reducing tiredness and fatigue. The active folate in this product supports healthy homocysteine metabolism, promoting cardiovascular health. Folate is also crucial for DNA synthesis and cell division, especially important for rapidly dividing cells. Many users experience better mood and cognitive function because folate is involved in neurotransmitter production. This supplement supports mental clarity and emotional balance without the stimulating effects of some other products.

How Much Fully Active Folate Should You Take?

Each capsule contains 400 mcg of Quatrefolic®. This matches the recommended dietary allowance (RDA) for most adults. Pregnant women require 600 mcg daily, while those planning pregnancy may take 400–800 mcg. The safe upper limit from supplements is 1,000 mcg. Since this supplement provides the active form, even individuals with absorption issues can effectively use the 400 mcg dose. Taking the capsule with a meal can enhance absorption.

How to Choose a Quality Folate Supplement

When choosing a folate supplement, quality is key. Opt for bioavailable forms like Quatrefolic® (5-MTHF) over synthetic folic acid. Third-party testing for purity and potency is a sign of a reliable product. Doctor's Best is committed to quality, and this supplement is non-GMO, vegan, gluten-free, and made in a cGMP-certified facility. The label clearly lists the folate form and dosage, offering transparency. Steer clear of supplements with unnecessary fillers or additives.

Potential Side Effects and Precautions

Folate supplements are generally well tolerated. However, very high doses (over 1,000 mcg) may cause abdominal cramps, nausea, or sleep disturbances. Importantly, high doses of folic acid can mask a vitamin B12 deficiency, which is common in older adults and can lead to neurological damage. Because this product uses methylfolate, it may not mask B12 deficiency to the same degree, but caution is still warranted. Pregnant or breastfeeding women, or those with a history of certain cancers, should consult a healthcare practitioner before use.

Frequently Asked Questions

Can I take this if I have an MTHFR mutation? Absolutely. Quatrefolic® is the active form, meaning it doesn't require the MTHFR enzyme, making it perfect for those with common MTHFR variants.

Is this product suitable for pregnancy? The 400 mcg dose supports general health; pregnant women should follow their healthcare practitioner's advice, usually 600–800 mcg daily.

Why is active folate better than folic acid? Active folate (5-MTHF) bypasses liver conversion, so it's more efficient and works for more people.

These statements have not been evaluated by Health Canada. This product is not intended to diagnose, treat, , or prevent any disease.

Important Information

Things You Need to Know

Your payment and personal information are protected using industry-standard SSL encryption, and all payments are securely processed through Shopify-approved payment providers. Prices are displayed in Canadian dollars, and applicable taxes are calculated at checkout.

Orders are generally processed within 1–3 business days. Standard delivery to Canada usually takes 5–15 business days after dispatch. Delivery times are estimates and may be affected by carrier delays, customs processing, weather conditions or other circumstances outside our control. Tracking information will be provided when available.

Return requests must be submitted within 30 days of delivery. Vitamins, supplements and health products must be unused, unopened, sealed and returned in their original packaging. Opened products cannot be returned unless they were delivered damaged, defective or incorrect.

Customers are responsible for return shipping costs for unwanted or change-of-mind returns, and a restocking fee of up to 20% may apply. Damaged, defective or incorrect items must be reported within 48 hours of delivery and may qualify for a replacement or full refund.

Refunds are issued to the original payment method after the returned item has been received and inspected. Refund processing may take up to 7 business days. Before returning any product, please contact our customer support team for return authorization. Returns sent without prior approval may be delayed or rejected.

Approved returns must be sent to:

Return Address Fullfillonus #1202
1128 Lexington Ave, Bldg 4 E
Rochester, New York 14606
United States

Refused or unclaimed shipments may only be refunded after they are returned and inspected. Original shipping charges, return shipping costs, customs fees and carrier charges may be deducted from the refund where applicable.

Vitamin4CA.com is operated by Cloverlight LLC.