Habu (snake, Trimeresurus Flav)
Haematopus Ostralegus
Haematoxylon Campechianum
Hafnium Oxide
Hair Applications (mixed)
Hair Dye (mixed)
Hairgrass (Antarctic, Deschampsia Antarctica) 
Haliaeetus Albicilla (White tailed Eagle)
Haliaeetus Leuc (American Bald Eagle)
Halocynthia Roretzi (Sea pineapple)
Halogen Light
Ham
Hamamelis Virginica
Hamster Hair
Handkea Ex (Lycoperdon Ex, Calvatia Excipul)
Handroanthus Impetiginosus (Tabebuja Imp)
Hapalochlaena Mac (Blue Ringed Octopus)
Haplopappus Bay
Hare (Lepus Europaeus)
Hare (Lepus Saxatilis)
Harebell (Campanula Rotundifolia, Bluebell)
Haronga Madagasc
Harpagophytum (Devil's Claw)
Harris Hawk (Parabuteo Unicinctus, Hawk Harris)
Harrogate Spa Water
Harvest Mite (Neotrombicula Autumnalis, Chigger)
Hawk, Harris (Parabuteo Unicinctus, Harris Hawk)
Hawk, Red Tailed (Buteo Jam Rapt, Red Tailed Hawk)
Hawksbill Sea Turtle (Eretmochelys imbricata)
Hawthorn Pollen
Hay Dust
HCD (House Dust/Cat/Dog)
Heart
Heath Spotted Orchid (Dactylorhiza Maculata)
Heather (mixed Scottish)
Hedeoma Pulegioides
Hedera Helix
Hedgehog (Erinaceus Europus)
Heimia Salicifolia
Hekla Lava
Helianthemum Numm (H. Vulg)
Helianthus Annuus
Helimincothorten
Heliotropium Peruvianum
Helium
Helix Aspera (Snail, garden)
Helix Pomatia (Snail, edible)
Helix Tosta (Snail, cooked)
Helleborus Foetidus
Helleborus Niger
Heloderma Horr (Beaded Lizard)
Heloderma Suspectum (Gila Monster)
Helodrilus Calig (Lumbricis Terr, Earthworm)
Helonias Dioica 
Helvella Lacunosa
Hemachatus Haem (Rinkhals, Spitting Cobra)
Hematite
Hemidactylus Frenatus (Gecko)
Henna (Lawsonia Intermis)
Hepar Sulph (Calcareum)
Hepar Sulph Kalinus
Hepatic (Liver) Cancer Aspirate
Hepatica Nobilis (Hepatica Triloba)
Hepatica Triloba (Hipatica Nobilis)
Heptacodium Miconioides
Heracleum Sphond (Branca Ursina)
Hermit Crab (Coenobita Clypeatus)
Hermit Crab (Pagurus Bernhardus)
Herniaria Glab
Heron, Great Blue (Ardea Herodias)
Heron, Grey (Ardea Cinerea, Grey Heron)
Herring, atlantic (Clupea harengus)
Heteractis Malu (Sea Anemone, Hawaiian)
Hevea Brasiliensis (Rubber Tree)
Hexachlorocyclohexane (HCH)
Hibbertia Scandens
Hibiscus Rosa Sinensis
Hieracium Pilosella
Hip
 
 
Hippocampus kuda (Common Seahorse)
Hippomanes
Hippophae Rhamnoides (Buckthorn, Sea buckthorn)
Hippopotamus (tail hair)
Hippozaeninum (Mallein)
Hippuricum Acid (Acid Hippuricum)
Hippuris Vulg
Hirudo Verbana (Sanguisuga)
Hirundo Rustica (Swallow)
Histamine (Histaminum)
Histidine
Hoang Nan (Strychnos Gaultheriana)
Hogweeds (mixed)
Hoitzia Coccinea (Loeselia)
Holarrhena Ant (Kurchi)
Holmium Brom
Holmium Carb
Holmium Met
Holmium Mur
Holmium Nit
Holmium Oxydatum
Holmium Phos
Holmium Sulph
Homarus Amer (Lobster)
Honey (Mel)
Hoover Dust
Hordeum Vulg (Barley)
Hornbeam (Carpinus Betula)
Hornbeam, American (Ostrya Virg)
Hornbill (Buceros Bicornis)
Horned Viper (Cerastes Cerastes)
Hornet (Vespa Crab)
Horse Hair
Horse Serum
Hottonia Palustris
House Dust
House Dust Mites (HDM)
House Dust Mites, Individual (see Dermatophagoides)
House Fly (Musca Domestica)
House spider (Tegenaria Domestica)
Human Dander
Human Dandruff
Human Hair
Humboldt Penguin (Sphenicus humboldti)
Hummingbird (Calypte Anna)
Humpback Whale (Megaptera Novaeangliae)
Humulus Lupulus (Lupulus)
Hura Bras (Hura Crepitans)
Hyaluronic Acid (Acid Hyaluronic)
Hydrangea Arbor
Hydrargyrum (Merc Viv)
Hydrargyrum Ammon (Merc Precaep Alb)
Hydrastinum Mur
Hydrastis Canadensis
Hydrobrom Acid (Acid Hydrobrom)
Hydrochloric Acid (Acid Mur, Muraticum Acid)
Hydrocotyle Asiatica (Centella)
Hydrocyanicum Acid (Acid Hydrocyanicum)
Hydrofluoric Acid (Acid Fluoricum, Fluoricum Acid)
Hydrogen
Hydrogen Peroxide
Hydrophis Cyan
Hydrophobinum (Lyssin) Nosode
Hydrophyllum Virgin
Hyena, saliva/hair (Parahyaena brunnea)
Hyoscyamus Niger
Hypericum Perf
Hypericum/Calendula
Hypophysine (Pituitary Gland whole)
Hypophysine Ant (Pituitary Gland Anterior)
Hypophysine Post (Pituitary Gland posterior)
Hypothalamus
Hypoxis Hemerocallidea
Hyssopus
Hystrix Prehensilis (Sphingurus Martini, Sphiggurus spinosus, Porcupine)