Free shipping on All Orders. No Minimum Purchase



Couldn't load pickup availability
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
NOW L-Lysine Double Strength 1000 mg Tablets provide a pharmaceutical-grade essential amino acid in a high-potency tablet format. Each tablet delivers 1,000 mg of L-Lysine from L-Lysine Hydrochloride, giving twice the L-Lysine amount of NOW’s regular 500 mg strength product.
Lysine is an essential amino acid that must be obtained through diet or supplementation. It is necessary for protein production and helps maintain structural proteins such as collagen and elastin, which support connective tissues including skin, tendons, and bone. Lysine also serves as a precursor to carnitine, which plays a role in fat metabolism and energy production.
This formula is ideal for adults looking for amino acid support, collagen synthesis support, healthy immune function, connective tissue wellness, and cardiovascular wellness. NOW L-Lysine 1000 mg Tablets are vegan, vegetarian, non-GMO, halal, kosher, made without gluten, dairy free, egg free, nut free, and soy free.
| Field | Details |
|---|---|
| Product Name | NOW L-Lysine Double Strength 1000 mg Tablets |
| Brand | NOW Foods |
| Product Type | Essential amino acid supplement |
| Strength | 1000 mg per tablet |
| Bottle Size | 100 Tablets |
| Serving Size | 1 Tablet |
| Servings Per Container | 100 |
| Form | Tablet |
| Product Color | Beige |
| Category | Amino Acids |
| Nutrient / Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| L-Lysine from 1,270 mg L-Lysine Hydrochloride | 1 g / 1,000 mg | Daily Value not established |
| Ingredient | Type | Purpose |
|---|---|---|
| L-Lysine Hydrochloride | Active ingredient | Provides 1,000 mg L-Lysine per tablet for amino acid, collagen, immune, and connective tissue support |
| Microcrystalline Cellulose | Other ingredient | Tablet filler and binder for structure and consistency |
| Silicon Dioxide | Other ingredient | Flow agent used to support manufacturing consistency |
| Stearic Acid vegetable source | Other ingredient | Plant-based manufacturing aid for tablet production |
| Vegetarian Coating | Tablet coating | Helps protect the tablet and supports easier swallowing |
| Croscarmellose Sodium | Other ingredient | Tablet disintegrant that helps the tablet break apart after ingestion |
| Magnesium Stearate vegetable source | Other ingredient | Plant-based lubricant used during tablet manufacturing |
Suggested use: Take 1 tablet 1 to 2 times daily.
Best time to take: L-Lysine can be taken in the morning or afternoon. If taking two tablets daily, split the dose between two separate times of day.
With food or empty stomach: This product may be taken with water. Users with sensitive stomachs may prefer taking it with a light meal or snack.
Foods to take or avoid: Take with a balanced diet that includes adequate protein. Avoid relying on supplementation as a replacement for dietary amino acids from food.
Hydration tips: Take each tablet with a full glass of water. Because this is a 1000 mg tablet, adequate water helps with swallowing and digestive comfort.
Daily vs. cyclic use: This supplement may be used daily as directed. For long-term or high-frequency use, consult a healthcare professional, especially if taking medications or managing a medical condition.
What to expect: L-Lysine is not a stimulant. It supports protein production, collagen maintenance, immune function, and amino acid nutrition over time with consistent use.
Warnings and precautions: For adults only. Consult a physician if pregnant, nursing, taking medication, or managing a medical condition. Keep out of reach of children.
Storage: Store in a cool, dry place after opening. Natural color variation may occur.
L-Lysine Hydrochloride: The active ingredient. It provides 1,000 mg of L-Lysine per tablet. L-Lysine is an essential amino acid required for protein production and maintenance of collagen and elastin.
Microcrystalline Cellulose: A plant-derived tablet filler and binder that gives structure and consistency to the tablet.
Silicon Dioxide: A flow agent used to keep powdered ingredients moving evenly during manufacturing.
Stearic Acid vegetable source: A plant-based manufacturing aid used to support tablet formation.
Vegetarian Coating: A coating used to protect the tablet surface and make the tablet easier to swallow.
Croscarmellose Sodium: A disintegrant that helps the tablet break apart after ingestion.
Magnesium Stearate vegetable source: A plant-derived lubricant used during tablet compression and manufacturing.
This formula combines a high-potency 1,000 mg L-Lysine dose with tablet-support ingredients that help maintain structure, consistency, and usability. Microcrystalline cellulose and vegetarian coating help form a stable tablet, while croscarmellose sodium supports tablet breakdown after swallowing. Silicon dioxide, stearic acid, and magnesium stearate assist manufacturing flow and consistency, creating a reliable vegan tablet format for daily amino acid support.
NOW L-Lysine Double Strength 1000 mg Tablets are used to support amino acid nutrition, collagen synthesis, connective tissue wellness, and healthy immune function.
Each tablet provides 1,000 mg of L-Lysine from 1,270 mg L-Lysine Hydrochloride.
The suggested use is 1 tablet 1 to 2 times daily, taken with water or as directed by a healthcare professional.
Yes. NOW lists this product as vegan and vegetarian, and it uses a vegetarian coating with plant-sourced manufacturing aids.
Yes. The manufacturer lists this product as made without gluten. It is also dairy free, egg free, nut free, and soy free.
It is called double strength because each tablet provides 1,000 mg L-Lysine, twice the amount found in NOW’s regular strength 500 mg L-Lysine product.
Pregnant or nursing women should consult a physician before using NOW L-Lysine 1000 mg Tablets.
The 100-tablet bottle provides 100 servings, based on a serving size of 1 tablet.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Thanks for subscribing!
This email has been registered!
Choose options
| Product | SKU | Description | Collection | Availability | Product type | Other details |
|---|