Essential Oils: M-O
| ESSENTIAL OIL | BOTANICAL NAME | ORGIN | EXTRACTION | PART OF PLANT | |
| MANDARIN, GREEN EXTRA | (Citrus reticulata) | Italy | Cold pressed | peel | |
| MANDARIN, RED | (Citrus reticulata) | India | Cold pressed | peel | |
| MANUKA | (Leptospermum scoparium) | New Zealand | Steam distilled | leaves | |
| MARIGOLD | (Tagetes minuta) | India | Steam distilled | flowers | |
| MARJORAM, SWEET | (Origanum marjorana) | Egypt | Steam distilled | leaves/flowers | |
| MARJORAM, SYLVESTRE | Spain | Steam distilled | |||
| MARJORAM, WILD | (Thymus mastichina) | Spain | Steam distilled | leaves/flowers | |
| MASSOIA BARK | (Cryptocaryo massoia) | New Guinea | Co2 | bark | |
| MASTIC (PISTACHIO) | (Pistacia lentiscus) | France | Steam distilled | leaves | |
| MELILOT | (Melilotus officinalis) | France | Absolue | leaves/herb | |
| MELISSA/ LEMON | (Melis.offic./Cit.limonum) | France | Steam distilled | flowers | |
| MELISSA | (Melissa officinalis) | France | Steam distilled | flowers | |
| MIMOSA | (Acacia deccurens) | France | Absolue | leaves | |
| MONARDA (WILD BERGAMOT) |
(Monarda fistulosa) | Canada | Steam distilled | leaves/flowers | |
| MYRRH | (Commiphora myrrha) | India | Steam distilled | resin | |
| MYRRH CO2 | (Commiphora myrrha) | Ethiopia | CO2 | resin | |
| MYRTLE, EXTRA | (Myrtus communis) | Morocco | Steam distilled | leaves/flowers | |
| NiAOULI | (Melaleuca quinquenervia) | Australia | Steam distilled | leaves | |
| NARCISSE SELECT | (Narcissus poeticus) | France | Absolue | flowers | |
| NEROLI BIGARADE | (Citrus aurantium) | India | Steam distilled | flowers | |
| NUTMEG | (Myristica fragrans) | Indonesia | Steam distilled | fruit | |
| OAKMOSS | (Evernia prunastri) | France | Absolue | ||
| ORANGE, BITTER | (Citrus aurantium aur.) | Ivory Coast | Cold pressed | peel | |
| ORANGE, SWEET EXTRA | (Citrus aurantium) | Italy | Cold pressed | peel | |
| OREGANO, EXTRA | (Corrodothymus capitatus) | Spain | Steam distilled | flowers/herb | |
| ORRIS ROOT (Iris) | (Iris pallida) | Albania | Co2 | root | |
| OSMANTHUS | (Osmanthus fragrans) | France | Absolue | resin/flowers | |