What is HG? HG stands for Holy Grail. This is used to refer to products which you have tried and proven to offer you the best results and which become a staple in your regimen. POSTS RELATED TO THIS TERM How To Detangle 4c Natural Hair: Holy Grail Product for Reducing … Why Scalp Exfoliation Is My Personal Holy Grail Cleansing Method … Oil Rinsing; The Holy Grail Of Black Hair Care? Related Posts:What Does HH Mean?What is the LOC or LCO method?What Does DC Or DT Mean?What is A BKT?What Is EVOO?What is SLS?What is Slip?What is Transitioning? TweetPinShare0 Shares Black Hair Information > Glossary > What is HG?