1 Product identity

Herbal Immune Support Formula

Royal Guard
Other Combinations Capsule 20 ingredients DSLD #15516
Net contents: 30 Individual Pack(s)
Target: Adults and Children 4 years and above
DSLD entry: 2012-11-21
2 Ingredients (20)
IngredientGroupSafety
Vitamin AVitamin AConditionally Safe
Vitamin CVitamin CGenerally Safe
Vitamin EVitamin EConditionally Safe
Olive leaf extractOlive Generally Safe
EchinaceaEchinacea angustifoliaConditionally Safe
AstragalusAstragalusGenerally Safe
Chinese Green TeaGreen Tea—
Red Wine ConcentrateRed Wine—
TurmericTurmeric—
GarlicGarlic—
SchisandraSchisandraGenerally Safe
Pau d'ArcoPau d'Arco—
GoldensealGoldensealLimited Evidence
Shiitake MushroomShiitake Mushroom—
Grape SeedGrape —
BioperineBlack Pepper—
Microcrystalline CelluloseCellulose—
SilicaSiliconGenerally Safe
Vegetable CelluloseCellulose—
purified WaterWater—
Ingredient amounts require the full DSLD label. View full label at NIH DSLD →
3 Safety cross-reference
Vitamin A — Conditionally Safe
⚠ Teratogenic at high doses
⚠ Hepatotoxic with chronic excess
Vitamin C — Generally Safe
⚠ GI distress at high doses
⚠ Kidney stones risk >1g/day
Vitamin E — Conditionally Safe
⚠ Increased bleeding risk
⚠ All-cause mortality at >400 IU/day
Olive Leaf Extract — Generally Safe
⚠ May lower blood pressure and glucose
⚠ GI effects
NAC — Conditionally Safe
⚠ GI upset
⚠ Rare bronchospasm
Astragalus — Generally Safe
⚠ Immunostimulatory
⚠ May lower blood glucose
Schisandra — Generally Safe
⚠ GI discomfort
⚠ May affect CYP enzymes
Goldenseal — Limited Evidence
⚠ Contains berberine — same CYP inhibition concerns
⚠ Hepatotoxicity at high doses
Silicon — Generally Safe
⚠ Very low toxicity
4 Label claims
• All Other
• Structure/Function
5 Data source
DSLD ID15516
Full labelView at NIH DSLD →
SourceOffice of Dietary Supplements, NIH
Market statusOn market
Entry date2012-11-21
6 More from Royal Guard
View Royal Guard Safety Scorecard → 4 products
2-Phase Dual Immune BoosterArabinogalactans/Olive Leaf ComplexEsterified Vitamin C
7 Cite this page
Vancouver
Pkhakadze G. Herbal Immune Support Formula — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 May 30]. Available from: https://supplement.ge/products/dsld-15516/
CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.
GP
Analyzed by SupplementIndex
PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD
Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG