Source Naturals L-Tyrosine, Free-Form Amino Acid Supplement, 100 Tablets

Home Source Naturals L-Tyrosine, Free-Form Amino Acid Supplement, 100 Tablets

Source Naturals L-Tyrosine, Free-Form Amino Acid Supplement, 100 Tablets

$44.47

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.

Source Naturals L-Tyrosine, Free-Form Amino Acid Supplement, 100 Tablets

$44.47

Description
Additional Information

Key Benefits of L-Tyrosine Supplementation

L-Tyrosine plays an essential role in the production of dopamine, norepinephrine, and epinephrine—neurotransmitters that influence mood, focus, and the body’s stress response. By supporting these pathways, this amino acid may help maintain mental performance during periods of physical or mental stress.* It also contributes to the synthesis of thyroid hormones, which help regulate metabolism and energy levels.

Many users report that taking L-Tyrosine helps them stay alert and focussed when fatigue sets in. It is also commonly used to support a positive mood and overall cognitive health.* Because it is a free-form amino acid, it does not require digestion for breakdown, allowing for faster absorption and utilisation by the body.

What Is L-Tyrosine?

L-Tyrosine is a naturally occurring amino acid that serves as a building block for important neurotransmitters in the brain. As a dietary supplement, it provides the free-form version of this amino acid, which is readily absorbed and utilised. Source Naturals offers L-Tyrosine in a pure, free-form tablet designed to support cognitive function and help the body adapt to stress.* This essential amino acid is not produced by the body and must be obtained through diet or supplementation, making it a popular choice for those aiming to maintain mental sharpness and emotional equilibrium.

Who Should Consider Taking L-Tyrosine?

L-Tyrosine may benefit individuals who experience mental fatigue from demanding work, study, or physical exercise. It is also popular among vegetarians and vegans, who may have lower dietary intake of tyrosine from plant sources. Those looking to support healthy stress adaptation or maintain cognitive function during sleep deprivation might also find it helpful. As with any supplement, it is best to consult with a healthcare professional before starting, especially if you are pregnant, nursing, or have a thyroid condition.

How to Choose a Quality L-Tyrosine Supplement

When selecting an L-Tyrosine supplement, purity and form matter. Free-form L-Tyrosine ensures optimal absorption, as it is already in its active amino acid structure. Look for products that are free from unnecessary additives—Source Naturals L-Tyrosine contains No yeast, dairy, gluten, egg, soy, wheat, sugar, starch, salt, preservatives, or artificial colours, flavors, or fragrances. With over 40 years of trust in the supplement industry, Source Naturals is committed to quality and purity.

The suggested use is one tablet daily. Tablets are convenient for consistent dosing and are ideal for those who prefer not to take capsules or powders.

Top Ingredients to Look For in an Amino Acid Supplement

For a single-ingredient supplement like L-Tyrosine, the primary consideration is the form and purity. Free-form amino acids are preferred because they are ready for absorption without digestion. Avoid products with fillers, binders, or common allergens. Source Naturals uses only the active L-Tyrosine in a base of microcrystalline cellulose and magnesium stearate (vegetable source) to ensure tablet integrity without compromising quality.

FAQs About L-Tyrosine

What is the difference between L-Tyrosine and N-Acetyl L-Tyrosine? L-Tyrosine is the free-form amino acid, while N-Acetyl L-Tyrosine (NALT) is a more soluble form often used for faster absorption. However, L-Tyrosine is the most common and cost-effective form.

Can I take L-Tyrosine on an empty stomach? Yes, it can be taken with or without food. Some people prefer taking it with a meal to avoid potential stomach upset, but it is generally well-tolerated.

How long does it take for L-Tyrosine to work? Effects may be felt within 30–60 minutes after ingestion, as it crosses the blood-brain barrier quickly. Consistent daily use may support ongoing neurotransmitter balance.

Are there any side effects? L-Tyrosine is generally safe at recommended doses. Some individuals may experience mild digestive discomfort or headache. It is not recommended for those with hyperthyroidism or taking MAO inhibitors without medical supervision.

*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.