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The Solution
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Preseed - the Right Solution for Your Vaginal Dryness!

Preseed Intimate Moisturizer provides moisture inside, where you need it most, without harming sperm. For use even while trying to conceive – a time of increased vaginal dryness when other products should be avoided due to their detrimental effects on sperm.

Preseed is the right solution for YOUR vaginal dryness.

  • pH balanced to match fertile cervical mucus.
  • Patented, one-of-a-kind formula does not harm sperm.
  • Contains arabinogalactan for antioxidant support .
  • Internal application coats vagina & cervix.
  • Clinically tested and doctor recommended.

Other lubricants can create a barrier that interferes with sperm swimming out of the semen.


Whereas, the live swimming sperm are able to move freely from the semen into Pre seed.


In addition, be sure and try Pre Lubricant, our external, isotonic lubricant for everyday use. Pre Lubricant is based on a similar formula to Pre seed, to provide non-irritating lubrication for use anytime. It can also be used by your physician during fertility procedures in the clinic, without harming sperm or embryos. A recent study at Ghent University showed that Pre Lubricant is less irritating than the leading lubricants.

What Makes Pre-Seed Unique?

Pre seed is the first "fertility-friendly" Intimate Moisturizer that mimics natural body secretions to relieve vaginal dryness while providing an optimal sperm environment.

Pre-Seed's moisture is delivered in a fluid with the same pH and osmolarity as semen and fertile cervical mucus, so as not to harm sperm, and to be mild to a woman's body.

Pre-Seed contains a naturally occurring bioactive plant sugar (arabinogalactan) which provides antioxidant support to cells.

Pre Seed is deposited inside to coat the vagina and external cervix and replenish nature's moisture without harming sperm even while trying to conceive – a time of increased vaginal dryness when other personal lubricants should be avoided.

Product Testing

We are proud of the testing that goes into ensuring Preseed offers you gentle, fertility-friendly moisture. 

Preseed has been clinically tested for irritation in people and rabbits. These tests show no evidence of reactivity or irritation. In fact, an independent study by Ghent University, found our formula to cause NO membrane irritation, whereas KY, Replens, and Astroglide all caused some irritation. Interestingly, in this study FemGlideTM (or Slippery StuffTM) caused a LOSS of mucus from the membranes.

Additionally, each lot of Pre-Seed is carefully screened to assure a fertility-friendly environment before it is released for sale. To our knowledge, we are the only vaginal moisturizer manufacturer that performs "Lot Release" testing on each batch to ensure that the product will relieve vaginal dryness while providing an optimal environment for sperm.

Each lot is tested to ensure:

  1. pH between 7.1 - 7.4
  2. Osmolarity between 260 and 365 mOsmo/kg
  3. No harm to Mouse Embryos: assures that greater than 85% of one cell mouse embryos develop to the blastocyst stage when cultured with Pre-seed.
  4. Sperm-friendliness: freshly ejaculated human sperm are cultured with Preseed in media to ensure that the percentage of swimming sperm, and their swimming speed is not negatively affected by the Pre-Seed.
  5. Culture to ensure there are NO pathogen (nasty) bacteria.

How We Make Sure Pre-Seed is Fertility Friendly

Using Preseed with its Unique Ingredients

Preseed comes in pre-filled applicators designed to apply intimate moisture for vaginal dryness relief as needed. To relieve vaginal dryness prior to intercourse, place the Pre seed deep within the vagina, to allow the product to coat the vagina and external cervix, providing moisture where it is most needed. Based on personal experience with preseed, the staff at INGfertility recommends application of preseed around 15 minutes prior to when you begin love making. It works well to apply Pre-Seed while sitting on the toilet or squatting. After depositing the tube contents as directed, excess Pre seed can be wiped off the vulva, and spontaneous enjoyment of trying to conceive can begin! Do NOT re-use opened tubes! That is a great way to get an infection and defeats the purpose of the product. The links on the menu provide you with more information.

If you have too much product (too slippery), read the FAQ about this, or try putting the product in 30-60 minutes before you begin making love. If you need more product, lie on the bed and insert the Pre-Seed right before your partner joins you. Also make sure the tube is shaken down well and all product is deposited inside.

Pre-Seed's Patented Ingredients Include:

Purified water: Very pure with low endotoxin from bacterial cell walls, and low metal or salt content.
Hydroxyethylcellulose: A non-toxic thickener. Has been shown to be similar to cervical mucus in laboratory studies.
preseed Pluronic: A non-toxic slippery agent. 
Sodium chloride: Makes the product isotonic to semen. Similar science as to why you drink Gatorade when you are dehydrated!
Arabinogalactan: A unique plant polysaccharide from larch trees, that provides antioxidant support for cells. Arabinogalactan is a very large sugar and can not be digested by bacteria or yeast to cause an infection, as can small molecules like glycerin.
Sodium phosphate & Potassium phosphate: Protects and holds the pH to that of semen and fertile cervical mucus for an optimal sperm environment.
Carbomer: A non-toxic thickener. 
Methylparaben: One of the most mild and well studied of all preservatives against bacterial growth. There is a detailed discussion of why we use this at our FAQs, but in Summary there is no evidence that this paraben at the levels we use has any adverse effect on sperm or reproduction.
Sodium hydroxide: Raises the pH to that of semen and fertile cervical mucus.
Preseed’s Quality "Made in the USA"

Preseed is made under contract for INGfertilityTM at neighboring Unicep Packaging in Idaho. Unicep is a registered facility for packaging of drugs and devices, and it has the highest international quality certification of ISO 9001 2000. You can read about how each lot of Preseed is tested before we sell it, to ensure the “fertility-friendly” nature.

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