Working...
Get ready for Flu Season! Winter Wellness by Life Extension blends two amino acids,  L-Cystine and L-Theanine, shown to strengthen your immune system and  help keep you heathy..

Winter Wellness (60 capsules)*

Winter Wellness has been discontinued. Seacoast recommends Wellness Formula by Source Naturals.

ProGreens (Click here) Herbal Blend to keep your immune system strong.

Sorry! This item has been discontinued. See below.

Are you ready for the onslaught of seasonal winter challenges? Is your immune system prepared to keep you healthy and on your feet?

Winter Wellness by Life Extension

These two amino acids work together to strengthen your immune system and optimize immune responsiveness.

L-theanine and L-cystine are the foundation of the Winter Wellness formula by Life Extension. Taken daily, they support the immune systemâ

By Rodolfo Schneider - Flag 
Comments? Question?
Updated Jan. 15, 2018, about 8 years ago

SKU: 0739
Distributed or manufactured from Life Extension. See more Life Extension products.

*Not intended to diagnose or treat diseases or ailments, and is not reviewed by the FDA.

Uses & Indications.
  • Enhance And Balance Immune Response
Ailments & Concerns.
  • Cold And Flu Season
Melatonin 10mg (60 caps)*
Melatonin 10mg (60 caps)* Life Extension


 21.00 
Life Extension
Natural Mint Toothpaste*(4oz)
Natural Mint Toothpaste*(4oz) Life Extension


 9.50 
Life Extension

Be the first to tell us your thoughts.Add your testimonial

Questions and answers:

Explore More Products

Theanine Serene with Relora (60 tabs)*
Theanine Serene with Relora (60 tabs)* Source Naturals


 11.19 
Source Naturals
Theanine Serene with Relora (120 tabs)*
Theanine Serene with Relora (120 tabs)* Source Naturals


 20.29 
Source Naturals
True Yacon Powder (4 oz)
True Yacon Powder (4 oz) Essential Source


 24.95 
Essential Source

winter challenges wellness cystine, theanine extension immune responsiveness, stronger optimize ready seasonal
1. Statements and claims on Seacoast.com have not been evaluated by the FDA and are not intended to treat or diagnose any ailment or disease.

What interests you?

Borage Oil (60 soft gels) Barleans Organic Oils

Tart Cherry Juice Concentrate Certified Organic (16 oz) Dynamic Health

Bryonia alba 9C Boiron

Cardio Chelate with EDTA (60 Vcaps) Metabolic Response Modifiers

PGX Daily | Benefits, Treatments & Side Effects
PGX is the new science of appetite control. The PGX program can be a comfortable way to improve eating habits for life.

Zyflamend | New Chapter Zyflamend Side Effects
Zyflamend Bonus Pack

PRID (18 g) Hylands

Alive! Whole Food Energizer, No Iron Added (90VCaps) Nature's Way

Pectasol-C Modified Citrus Pectin | From Fruit Peel to Cancer Fighter
PectaSol-C Modified Citrus Pectin is the most effective product available for comprehensive, natural cellular health support. Dr. Isaac Eliaz, founder Econugenics.

Aller Max (100 Caps) Country Life

Raspberry Ketone Rapid Weight Loss Catalyst (100 mg, 2 oz) Essential Source

Dietary Supplements - Are they safe and effective?
Despite recent news reports, supplements are reasonable choices when used properly.

Serretia (90 caps)* Arthur Andrew Medical

Cellfood Essential Silica (4 oz)* Lumina Health

Wellness Formula (120 caps)* Source Naturals

Skin Restoring Phytoceramides with Lipowheat (30 veggie liquid caps)* Life Extension

Best Fucoidan 70% Brown Seaweed (60 vegi capsules) Doctor's Best

Biotivia | Transmax |Potent Resveratrol Supplements
Biotivia Transmax rated best resveratrol supplement by Men's Health Magazine. On Sale. Lowest Price. Too Low to be advertised. orders@seacoastvitamins.com contact us today!

System-Six, Powerful Weight Loss Support (100 softgels) Irwin Naturals

AnxioCalm (45 tablets) Terry Naturally

Sleep Tonight (28 Tabs) Enzymatic Therapy

HGH Surge (150 tabs)* Source Naturals

Arsenicum album 9C Boiron

Green Phytofoods Powder (2 lb) NOW Foods

Steel Libido for Women (75 softgels)* Irwin Naturals

Liver Detox (2-part kit)* Renew Life