Immunity

Comprehensive daily foundational nutrition with 75 vitamins, minerals, and whole-food sourced ingredients in one scoop

Single-serving travel packets of AG1 foundational nutrition for on-the-go daily health

Liquid vitamin D3 and K2 companion supplement to AG1 for bone and immune support

High-potency Amazon Elements vitamin D3 softgels with third-party testing for purity and potency

Advanced probiotic formula featuring soil-based organisms (SBOs) plus traditional probiotics and prebiotics for comprehensive gut microbiome support and immune health

High-potency vitamin C with citrus bioflavonoids for enhanced absorption, immune defense, and collagen synthesis support

Multi-strain probiotic capsules with 30 billion CFU for gut microbiome balance, digestive comfort, and immune health

Daily vitamin D3 softgels for bone mineral density, calcium absorption, immune function, and muscle health

Chewable vitamin D3 with EarthSweet natural fruit flavor blend, free from artificial sweeteners and colors.

Organic spirulina powder rich in protein, vitamins, and antioxidants for immune support, detox, and overall nutrition

8-strain probiotic with 30 billion CFU per capsule including Lactobacillus and Bifidobacterium species. Delayed-release capsules for intestinal delivery. 60 capsules.

USP-grade vitamin C with 1000mg ascorbic acid per capsule. Vegan, gluten-free, non-GMO. Simple, pure formula with no additives. 240 capsules. One of iHerb Japan's best sellers.

L-92 lactic acid bacteria supplement for seasonal allergy and immune support

Functional vitamin sports drink with vitamin C 1000mg per 500ml bottle. Low-calorie formula. Lemon flavor. Combines hydration with vitamin C supplementation for active lifestyles.

Easy-to-swallow vitamin D3 softgels for bone mineralization, immune support, and mood regulation.

Advanced cold remedy targeting throat pain and inflammation with tranexamic acid

Vitamin C 1050mg (equivalent to ~53 lemons) with vitamin B2 2.2mg and B6 1.0mg per 2-tablet daily dose. No artificial flavoring, coloring, or preservatives. Made in domestic factory. 60-day supply (120 tablets, pouch type).

High-dose 1000mg vitamin C with sustained release for immune and beauty support

Essential zinc supplement for immune function and taste health

Agaricus mushroom extract for immune system fortification.

Okinawan mozuku seaweed fucoidan for immune support and gut health

Brazilian green propolis for immune support and antimicrobial defense.

Slow-release vitamin C for all-day antioxidant protection.

Probiotic supplement with Enterococcus faecalis EC-12, one trillion inactivated bacteria per daily dose. Supports gut health through biogenic approach. Room-temperature stable, no refrigeration needed.