Vagisil ProHydrate Internal Hydrating Gel

Prove It Score -
3.2

Vaginal moisturisers as a category are strongly endorsed by UK and international guidelines. ProHydrate's lead ingredient ishyaluronic acid, which has a growing body of trial evidence supporting its use for vaginal dryness. The main caveat is that no published, independent clinical trial exists for Vagisil ProHydrate specifically, so the "clinically proven" claim on the packaging is more an ingredient fact than anything else.

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Bottom Line

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Ingredients

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Bottom line

What it is:

A vaginal moisturiser for dryness during perimenopause and menopause.

Clinical trial evidence for the product category

A 2024 systematic review found only 4 RCTs on vaginal moisturisers, rating evidence quality as low [6]. A 2018 RCT of 302 women found a vaginal moisturiser did not significantly outperform placebo at 12 weeks, though all groups improved substantially [7].

Evidence for hyaluronic acid (sodium hyaluronate)

The evidence for hyaluronic acid as a vaginal ingredient is reasonably encouraging. A 2021 systematic review covering 17 studies found it broadly effective for dryness, itching, burning and dyspareunia [8], and several individual RCTs back this up. Across trials comparing HA gel to vaginal oestrogen cream, the two performed similarly [9][11], and in one 3-month RCT it outperformed a plain water-based lubricant [10]. The picture is not entirely consistent. One 2022 RCT found no advantage over polycarbophil gel [12], but taken together the evidence is more solid for HA than for most other non-hormonal vaginal ingredients. Larger, better-designed trials are still needed.

What the guidelines say

There is strong, consistent agreement across UK and international guidelines that non-hormonal vaginal moisturisers are a legitimate and recommended treatment for vaginal dryness. NICE NG23, updated in November 2024, recommends them for women who cannot or prefer not to use vaginal oestrogen [1]. The British Menopause Society's 2025 GSM consensus statement goes a step further, advising use at least twice weekly regardless of sexual activity, and noting that in some studies moisturisers perform comparably to local oestrogen therapy [2]. NAMS (2020) and the BSSM (2024) are equally clear, both placing non-hormonal moisturisers at the top of the treatment ladder for mild symptoms [3][4]. The one consistent gap across all of these guidelines is that none name any specific over-the-counter product, including this one.

References

[1] NICE. Menopause: identification and management (NG23). 2024. Available at: https://www.nice.org.uk/guidance/ng23. No PMID (clinical guideline).

[2] British Menopause Society. Consensus Statement: Genitourinary Syndrome of Menopause (GSM). 2025. Available at: https://thebms.org.uk/publications/consensus-statements/genitourinary-syndrome-of-menopause-gsm/. No PMID (clinical guideline).

[3] Faubion S et al. Menopause 2020;27:976–992. PMID: 32852449. https://pubmed.ncbi.nlm.nih.gov/32852449/

[4] British Society for Sexual Medicine. Position Statement for Management of Genitourinary Syndrome of the Menopause (GSM). 2024. Available at: https://bssm.org.uk/wp-content/uploads/2024/03/BSSM-Position-statement-for-management-of-genitourinary-syndrome-of-the-menopause-GSM.pdf. No PMID (clinical guideline).

[5] Potter N, Panay N et al. Climacteric 2021;24:19–24. PMID: 32990054. https://pubmed.ncbi.nlm.nih.gov/32990054/

[6] Danan E et al. Ann Intern Med 2024;177:1400–1414. PMID: 39250810. https://pubmed.ncbi.nlm.nih.gov/39250810/

[7] Mitchell C et al. JAMA Intern Med 2018;178:681–690. PMID: 29554173. https://pubmed.ncbi.nlm.nih.gov/29554173/

[8] Buzzaccarini G et al. Climacteric 2021;24:560–571. PMID: 33759670. https://pubmed.ncbi.nlm.nih.gov/33759670/

[9] Chen J et al. J Sex Med 2013;10:1575–1584. PMID: 23574713. https://pubmed.ncbi.nlm.nih.gov/23574713/

[10] Nappi R et al. Minerva Obstet Gynecol 2021;74:480–488. PMID: 34096694. https://pubmed.ncbi.nlm.nih.gov/34096694/

[11] Agrawal S et al. Menopause 2024;31:750–755. PMID: 39042017. https://pubmed.ncbi.nlm.nih.gov/39042017/

[12] Cagnacci A et al. Eur J Obstet Gynecol Reprod Biol 2022;270:239–245. PMID: 35131532. https://pubmed.ncbi.nlm.nih.gov/35131532/

Ingredients

Water

Ethylhexylglycerin

Phenethyl alcohol

Hyaluronic acid

Sodium hydroxide

Carbomer Homopolymer Type B

Propanediol

Glycerin