Pubic hair grows at roughly one centimeter per month, and there is no proven method to dramatically speed that up. The rate is largely determined by hormones and genetics. That said, several factors can slow hair growth below its natural potential, and addressing those is the most realistic way to see fuller, faster results.
Why Pubic Hair Growth Varies Between Women
Pubic hair is driven almost entirely by androgens, a group of hormones that includes testosterone and DHEA. During puberty, androgens transform tiny, invisible follicles into larger ones capable of producing thicker, pigmented hair. They also control how long each hair stays in its active growing phase and how large the follicle becomes. Women naturally have lower androgen levels than men, which is why pubic hair tends to be less dense and grows more slowly in comparison.
Your personal androgen levels, follicle sensitivity, and genetic background all determine how thick and how quickly your pubic hair comes in. Some women naturally have sparse pubic hair and always will. Others notice thinning over time due to hormonal shifts from aging, birth control, or conditions like thyroid disorders. If your pubic hair has become noticeably thinner or patchier than it used to be, a hormonal imbalance may be worth investigating with a healthcare provider.
Nutrients That Support Hair Follicle Health
Hair follicles are among the fastest-dividing cells in the body, which makes them sensitive to nutritional deficiencies. You won’t grow pubic hair faster by loading up on supplements if your diet is already adequate, but correcting a deficiency can restore growth that had stalled.
Iron is the most common nutritional deficiency worldwide and a well-documented cause of excessive hair shedding. Iron plays a direct role in regulating genes active in the hair follicle’s growth zone. When iron stores drop too low, follicles can shift prematurely from their growing phase into a resting phase. Red meat, lentils, spinach, and fortified cereals are reliable dietary sources. If you suspect low iron (fatigue, pale skin, heavy periods are common signs), a blood test measuring ferritin levels can confirm it.
Zinc deficiency is another recognized cause of hair loss. The body cannot produce zinc on its own, so it must come from food. Oysters, beef, pumpkin seeds, and chickpeas are good sources. In studies of people experiencing hair shedding, nearly 10% had low zinc levels, and hair regrowth occurred once zinc was supplemented.
Biotin (vitamin B7) is heavily marketed for hair growth, but the evidence is thin. Biotin deficiency does cause hair loss, yet true deficiency is rare in people eating a normal diet. Large-scale studies have not confirmed that biotin supplements improve hair growth in people who aren’t actually deficient. If you’re already getting enough from eggs, nuts, and whole grains, extra biotin is unlikely to help.
Shaving Does Not Make Hair Grow Faster
This is one of the most persistent myths. Shaving does not change the thickness, color, or speed of hair growth. When you shave, the razor cuts the hair at its widest point, leaving a blunt tip. As that blunt tip pushes through the skin, it feels coarser and looks darker than a naturally tapered hair would. This creates the illusion of thicker, faster growth, but the follicle itself is completely unaffected by what happens at the skin’s surface.
If you’ve been removing pubic hair and are now trying to grow it back, simply stopping removal is the most effective step. Waxing and epilating pull hair from the root, so regrowth takes longer to appear (usually three to six weeks) compared to shaving, where stubble shows within days. Neither method changes the actual growth rate.
What About Castor Oil and Other Topical Remedies?
Castor oil is one of the most commonly recommended home remedies for hair growth online. Some people claim it can boost growth by three to five times the normal rate. There is no clinical evidence supporting this. The oil is thick and moisturizing, which can make existing hair look healthier and feel softer, but it does not stimulate the follicle to produce hair any faster.
The same applies to coconut oil, rosemary oil, and most other topical treatments promoted for body hair growth. While rosemary oil has shown some promise for scalp hair in small studies, these results have not been replicated for body hair, and the pubic area’s skin is more sensitive and more prone to irritation from essential oils. If you do apply any oil to the area, patch test first and avoid contact with mucous membranes.
Realistic Steps to Support Growth
Since you can’t force follicles to work faster than your biology allows, the practical approach is removing obstacles to your body’s natural growth rate:
- Stop all hair removal. This is the simplest and most effective step. Every time you wax or shave, you reset the visible growth timeline.
- Eat enough protein. Hair is made of keratin, a protein. Diets very low in protein can slow hair production across the body.
- Check for deficiencies. If your hair seems unusually sparse everywhere (not just the pubic area), iron, zinc, or thyroid levels may be worth testing.
- Be patient with the timeline. Full pubic hair regrowth after prolonged waxing can take several months. Some follicles may have been damaged by repeated removal and could produce finer hair than before, or stop producing hair altogether.
- Keep the skin healthy. Gentle exfoliation a few times a week can prevent ingrown hairs, which trap growth beneath the surface and make the area look patchier than it is. Use a mild, fragrance-free scrub or a soft washcloth.
When Sparse Growth May Signal Something Else
Most women searching for ways to grow pubic hair faster are simply waiting for regrowth after removal. But if you’ve never had much pubic hair, or if it has thinned significantly without an obvious cause, a few conditions are worth knowing about. Hormonal changes from menopause, certain birth control methods, or adrenal insufficiency can all reduce androgen levels enough to thin body hair. Thyroid disorders, both overactive and underactive, commonly affect hair across the body. Rare genetic conditions like hypotrichosis cause sparse hair from early childhood and affect the scalp, eyebrows, and body hair together.
The pattern matters. Losing hair only in the pubic area is unusual and may point to a skin condition, friction damage, or a localized issue rather than a systemic one. Thinning that affects multiple areas of the body at once is more likely hormonal or nutritional. In either case, a dermatologist or endocrinologist can run targeted tests to identify the cause and determine whether treatment would help.