• search
  • shopping cart
  • main navigation
  • main content
  • footer
Let's Personalize Your Experience!
Where would you like to shop? Please click the logo below.
The Vitamin Shoppe®
Super Supplements®
Free shipping on $45+, or pick up in-store
  • You're Shopping: Sterling, VA
  • You're Shopping: Sterling, VA
    Sterling, VA
    45450 Dulles Crossing Plaza
    Sterling, VA 20166     (571) 434-0624 Open
    3.44 mi
  • Auto Delivery
  • Healthy Awards
    • Explore The Perks
    • Nutrition Coaching
    • Rewards Center
  • What's Good
    • What's Good Blog
    • Wellness Council
    • Videos
    • Glossary
® ® b y
Icon to launch live chat Live Chat
Icon to launch live chat Live Chat
Store Locator
Account IconSign In/Register
Icon for view order history to reorder productsReorder
qty
  • Vitamins & Supplements
  • Protein & Fitness
  • Digestion & Gut Health
  • Healthy Weight
  • Food & Drinks
  • Herbs & Natural Remedies
  • Natural Beauty & Skin
  • Best Sellers
  • Deals
  • Health Concerns
  • Brands
  • New & Trending
Earn FREE points for faster Cash Back Awards. This Month's Secret Code is SUNNYDAY
15% Off $50+ with 2-Hour Pickup. Online Only. Ends: 06/14| Code: CARRYOUT
NEW LIMITED-TIME FLAVORS! Bubblicious Strawberry Splash and Original from GHOST® ENERGY
Buy One, Get One 50% Off Alani Nu Energy Cases
Earn FREE points for faster Cash Back Awards. This Month's Secret Code is SUNNYDAY
15% Off $50+ with 2-Hour Pickup. Online Only. Ends: 06/14| Code: CARRYOUT
NEW LIMITED-TIME FLAVORS! Bubblicious Strawberry Splash and Original from GHOST® ENERGY
Buy One, Get One 50% Off Alani Nu Energy Cases
Earn FREE points for faster Cash Back Awards. This Month's Secret Code is SUNNYDAY
Play promo animation Pause promo animation
×

FREE STANDARD SHIPPING on orders of $45 or more
How to get FREE Standard Shipping:
  1. Ship to an address within the United States (including U.S. territories, excluding Puerto Rico)
  2. Place your online order of $45 or more* - after promotions and before tax are applied
  3. Use "Standard" shipping option at checkout

Orders will be shipped within 24 hours of placement*, pending verification of billing information and shipping method selected. International orders and orders containing gift cards or out-of-stock items will be processed as quickly as possible.

 

*Excludes all orders placed on major US holidays (Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day and New Year's Day).

 

We're sorry for the inconvenience, but International Shipping and shipping to Puerto Rico is not available at this time.

 

Why Pick Up In-Store?

Skip the shipping—and the line. Buy online and we’ll have your order ready for you. Easy. Learn more here.

 

Shop with confidence with our Easy Returns Policy

Customers may return any opened or unopened merchandise purchased from any The Vitamin Shoppe store or at www.vitaminshoppe.com, our mobile site or any mobile apps to any store or Distribution Center within 30 days. Click here to see our return policy for more information.

Change Store
Or
Updating results..updating results

Action Recommended: Change Password

To protect the wellness and security of your account, we request that you change your password every 90 days. We’ll remind you again in 30 days unless you’ve reset your password by then. Thanks!

I don't want to change my password
loading...LOADING...

Letter Vitamins by Doctors Best

Support continuous health and wellness with The Vitamin Shoppe's extensive selection of letter vitamins.
  • Vitamins & Supplements
    • Letter Vitamins
      • Vitamin B (177)
      • Vitamin D (99)
      • Vitamin C (83)
      • Letter Combinations (30)
      • Vitamin E (22)
      • Vitamin K (22)
      • Vitamin A (11)
Narrow by Category
Vitamins & Supplements
Letter Vitamins
Vitamin B (177)
Vitamin D (99)
Vitamin C (83)
Letter Combinations (30)
Vitamin E (22)
Vitamin K (22)
Vitamin A (11)
Pickup & Delivery Availability
Filter Products
Filter
Looking for something specific? Filter products below.
Looking for something specific? Filter products below.
  • Doctors Best
Clear All
  • Vitamins & Supplements
    • Letter Vitamins
      • Vitamin B (177)
      • Vitamin D (99)
      • Vitamin C (83)
      • Letter Combinations (30)
      • Vitamin E (22)
      • Vitamin K (22)
      • Vitamin A (11)
Narrow by Category
Vitamins & Supplements
Letter Vitamins
Vitamin B (177)
Vitamin D (99)
Vitamin C (83)
Letter Combinations (30)
Vitamin E (22)
Vitamin K (22)
Vitamin A (11)
Displaying 1 - 5 of 5
Auto Delivery Save 15%
Natural Vitamin K2 MK-7 with MenaQ7 - Supports Bone Health - 100mcg (60 Capsules)
add to cart
Doctors Best
Natural Vitamin K2 MK-7 with MenaQ7 - Supports Bone Health - 100mcg (60 Capsules)
Be the First to Review
$21.99
($0.37/Serving)

Same-Day Delivery. Order by 2PM.

Free ShippingPick-Up
add ed  to Cart
Auto Delivery Save 15%
Vitamin C - Vegan - 1,000 MG (120 Vegetarian Capsules)
add to cart
Doctors Best
Vitamin C - Vegan - 1,000 MG (120 Vegetarian Capsules)
(2)
$31.99
($0.27/Serving)

Same-Day Delivery. Order by 2PM.

Free ShippingPick-Up
add ed  to Cart
Auto Delivery Save 15%
Vitamin E Tocotrienols with TocoGaia Ultra - 50 MG (60 Softgels)
add to cart
Doctors Best
Vitamin E Tocotrienols with TocoGaia Ultra - 50 MG (60 Softgels)
(1)
$29.99
($0.50/Serving)

Same-Day Delivery. Order by 2PM.

Free ShippingPick-Up
add ed  to Cart
Same Day Delivery

Now Available: Same-Day Delivery

Get in the fast lane to feeling great.

Learn More

Auto Delivery Save 15%
Fully Active B Complex with Quatrefolic - Supports Energy Production (60 Capsules)
add to cart
Doctors Best
Fully Active B Complex with Quatrefolic - Supports Energy Production (60 Capsules)
(1)
$25.99
($0.43/Serving)

Same-Day Delivery. Order by 2PM.

Free ShippingPick-Up
add ed  to Cart

Sale

Fully Active B-Complex - Vegan (30 Vegetarian Capsules)
add to cart
Doctors Best
Fully Active B-Complex - Vegan (30 Vegetarian Capsules)
(54)
$3.99 $15.97
(75% off)

Same-Day Delivery. Order by 2PM.

Free ShippingPick-Up
add ed  to Cart
back to top
br_related_rid : Rgw6dpngal6bnchpwbfzj-r1,m1,uf
br_iuid : aHR0cHM6Ly93d3cudml0YW1pbnNob3BwZS5jb20vYy92aXRhbWlucy1zdXBwbGVtZW50cy9sZXR0ZXItdml0YW1pbnMvYnJhbmQvZG9jdG9ycy1iZXN0
Looking For More?
Related Products
  • Bone Strength
    New Chapter
    Plant Calcium Bone Strength - Strong, Healthy Bones & Teeth (90 Slim Tablets)
    Plant Calcium Bone Strength - Strong, Healthy Bones
    Stay strong for life: Clinical-strength dose of calcium with K2 & D3 supports bone density and normal bone creation, strong teeth, cardiovascular health, and healthy joint support. Organic calcium: USDA Organic plant-based calcium bone density supplement from wild Red Marine Algae is backed by 27 studies and includes magnesium and 70+ naturally occurring trace minerals. Formulated for absorption: We believe the best calcium supplements are easily recognized and absorbed by the body, so ours is expertly formulated with Vitamin D3 for better absorption & K2 to direct calcium to bones (where you need it most); an alternative to calcium citrate. Easy to swallow: Slim calcium tablets for bone support with slow & steady release.
    $44.99
    Add To Cart Quick View >
  • D3 & K2 ActivMelt - Natural Raspberry
    KAL
    Vitamin D3 & K2 - Instant Dissolve - Natural Red Raspberry - 30 MCG/ 45 MCG MK-7 (60 Micro Tablets)
    Vitamin D3 & K2 - Instant Dissolve -

    KAL® D3 and K2 ActiveMelt™ micro tablets, with natural red raspberry flavor, melt quickly in the mouth and are designed for optimal absorption in the body. Each tablet tablet provides Vitamin K2 in the MK-7 form.

    Rated 5 stars out of 5 stars, From 5 customer reviews (5)
    $17.99
    Add To Cart Quick View >
  • Liposomal D3K2 - Berry
    RHO
    Liquid Liposomal D3K2 – Immune and Bone Support – Berry Fusion (4 fl. oz./30 Servings)
    Liquid Liposomal D3K2 – Immune and Bone Support
    • Supports immunity, bone health, and calcium absorption
    • Liposomal delivery system for optimal nutrient absorption
    • Naturally flavored with zero calories or artificial additives
    • Berry Fusion flavor

    Vitamins D3 and K2 work in tandem for optimal wellness. D3 contributes to healthy immune function and helps the body absorb calcium, while K2 guides the calcium to your bones and away from soft tissues, supporting cardiovascular health.

    This liquid formula delivers 63mcg of vitamin D3 and 200mcg of vitamin K2 encapsulated in liposomes for high absorption, ensuring your body has what it needs to function at its best.

    Frequently Asked Questions  

    What is a liposomal supplement?

    Liposomal supplements are nutrients that have been “packaged” in a pocket of phospholipids—a.k.a. a liposome. This increases the bioavailability of nutrients and improves absorption.

    What does “bioavailable” mean?

    Bioavailability is the measure of the amount of a nutrient used by the body on a cellular level after ingestion.

    $29.99
    Add To Cart Quick View >
  • Ultimate Omega D3 & K2 - Lemon
    Nordic Naturals
    Ultimate Omega with D3 + K2 - 1,210MG Plant-Based EPA & DHA - Lemon (60 Softgels)
    Ultimate Omega with D3 + K2 - 1,210MG
    Support your heart, bones, and immune system with the ultimate combination of nutrients for whole-body wellness. This powerful formula blends high-potency omega-3 fish oil with vitamin D3 and vitamin K2, helping your body absorb calcium efficiently, maintain healthy arteries, and promote strong bones.
    Rated 5 stars out of 5 stars, From 2 customer reviews (2)
    $45.86
    Add To Cart Quick View >
Related Searches
  • natural vitamin k2
  • plnt supplements organic capsule
  • support vegetarian capsules
  • vitamin d3 orange
  • vitamin d3 supplement
  • strawberry multivitamin
×
loading..
No Long Display Name
Product Label
Add To Cart View Product >

Find Letter Vitamins by Doctors Best at The Vitamin Shoppe Store Near You

There are more than 600 The Vitamin Shoppe® stores across the US, so it's very likely you can pop in and find Letter Vitamins by Doctors Best locally. Check out our store locator to find a Shoppe near you. Don’t forget—you’ll save at least 15% on every subscription with Auto Delivery, plus an addition 5% off select brands to help you stay on the path. Not only will you never miss a thing, but you’ll also get free shipping on subscription refills of $25 or more!* You define what better looks (and feels) like—Count on us to help you get there.


Shipping & Returns

  • FREE for Orders over $45

    Orders under $45, domestic shipping is only $7.99. Find more at our Shipping Policy page.

    • Return Policy for Items Purchased Online

    Shop with confidence with our Easy Returns Policy. Customers may return any opened or unopened merchandise purchased from any Vitamin Shoppe channel to any Vitamin Shoppe store within 30 days. Find more at our full Returns Policy page.

Need More Help?

Chat with one of our Health Enthusiasts right now.

LIVE CHAT
HomeVitamins & SupplementsLetter Vitamins
External Site Overlay

Welcome to The Vitamin Shoppe U.S.!

Please note: we do not currently ship to your country from this website. Choose “Shop Locally” to switch to your local site for easy ordering.

Shop LocallyStay Here

My Account
  • My Account
  • My Auto Delivery
  • Gift Cards
  • Order Tracking & History
  • Quick Reorder
  • Rewards Center
Shop With Us
  • Store Locator
  • Vitamin Shoppe Brand
  • Quality Promise
  • The Vitamin Shoppe App
  • About Healthy Awards
  • FREE Nutrition Coaching
  • About Auto Delivery
  • Shipping Rates
  • *Promotion Details & Exclusions
  • Returns
  • Help / FAQs
Corporate Information
  • About The Vitamin Shoppe
  • Careers
  • Press Room
  • Management
  • Product Recalls
  • New Suppliers
  • Affiliate Program
  • Our Commitment to Communities
  • Contact Us
Policies
  • Accessibility Notice
  • CA Transparency In Supply Chains
  • Privacy Policy
  • CA Applicant Privacy Notice
  • Terms of Use
    (Updated 4/9/2026)
  • Purchase Policy
  • Healthy Awards Terms and Conditions
  • Auto Delivery Terms and Conditions
Stay Connected
Read Our What’s Good Blog
Learn About Our Wellness Council
Facebook Instagram YouTube LinkedIn tiktok

EARN FREE POINTS WITH OUR APP

Scan to Download

QR Code to download App
Google Play Logo Google Play Logo
Apple Store Logo Apple Store Logo
Call Us
natural products association 2024

Accredited business
vitamin angels
rwb
Site Map | ©2026 The Vitamin Shoppe®

Statements made on this website have not been evaluated by the U.S. Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. Information provided by this website or this company is not a substitute for individual medical advice.

Page loadingLOADING...
Page loadingLOADING...

Sign In

Forgot/Need a Password?

Join Now

Gain access to instant points, Cash Back Awards, exclusive giveaways, and V.I.P. events, for starters.
Continue as a guest >

Join Now

Ready to get your V.I.P. on? Fill out the info below and we’ll kickstart your membership with 25 FREE bonus points towards a Cash Back Award.

8 or more characters

Uppercase letters

Lowercase letters

At least one number

By creating an account, you agree to the Healthy Awards Terms and Conditions , Auto Delivery Terms and Conditions and the Vitamin Shoppe's Terms of Use and Privacy Policy. If you are a California or Colorado resident, you agree that you are enrolling in a financial incentive/loyalty program and acknowledge that you have read and understand the Financial Incentive and Loyalty Program Notice.

Join Now

Ready to get your V.I.P. on? Fill out the info below and we’ll kickstart your membership with 25 FREE bonus points towards a Cash Back Award.

8 or more characters

Uppercase letters

Lowercase letters

At least one number

By creating an account, you agree to the Healthy Awards Terms and Conditions , Auto Delivery Terms and Conditions and the Vitamin Shoppe's Terms of Use and Privacy Policy. If you are a California or Colorado resident, you agree that you are enrolling in a financial incentive/loyalty program and acknowledge that you have read and understand the Financial Incentive and Loyalty Program Notice.

You're In

Thanks for joining the family. Now you get points on every purchase—towards Cash Back Awards—plus, access to the Rewards Center with free points activities every month, giveaways, and oh yeah… those 25 bonus points will be in your account by tomorrow.

You're In

Thanks for joining the family. Now you get points on every purchase—towards Cash Back Awards—plus, access to the Rewards Center with free points activities every month, giveaways, and oh yeah… those 25 bonus points will be in your account by tomorrow.

back to top