Pregaine is a specialized hair-care brand focused primarily on shampoos for thinning, fine, or hair-loss-prone hair. It is closely associated with Regaine, the hair-loss treatment brand based on minoxidil. Unlike Regaine, Pregaine’s products are shampoos intended primarily for cleansing the scalp and improving the body, volume, and manageability of thinning-looking hair, rather than serving as a medical hair-regrowth treatment. 1

The brand occupies a distinct position between ordinary cosmetic shampoo and medical hair-loss treatment. While historically connected to pharmaceutical giants Upjohn and Pharmacia & Upjohn, current trademark records in some jurisdictions identify Kenvue Inc. as the owner of the PREGAINE trademark. In markets such as Hong Kong, the official site is published by Johnson & Johnson Consumer (Hong Kong) Limited, reflecting the brand’s corporate lineage. 2

Brand Profile

Pregaine’s roots trace back to The Upjohn Company, an American pharmaceutical firm. Trademark filings dating to 1985 show the PREGAINE trademark was registered for hair/scalp shampoo by The Upjohn Company. 3 Historical records in Singapore identify Pharmacia & Upjohn as the proprietor of PREGAINE for non-medicated hair and scalp preparations.

This history explains the close relationship between the two brand names:

• Pregaine: Focused on hair/scalp cleansing and cosmetic care.
• Regaine: Focused on medical hair-loss treatment products.

By the 1990s, both brands were associated with Pharmacia & Upjohn. A 1998 UK trademark decision specifically discussed PREGAINE as a shampoo mark and REGAINE as a baldness-treatment mark owned by Upjohn. Following pharmaceutical-industry consolidation involving Pharmacia and Johnson & Johnson, the European Commission described Pregaine as a specialized volume-enhancing shampoo for thinning hair sold by Pharmacia Corporation/Pharmacia & Upjohn-related operations in 2006.

In Singapore, the currently listed Pregaine range consists primarily of two 400 ml shampoos. Watsons lists both products under its Pregaine brand catalogue. 4 Retailers such as FairPrice also stock these items. 5

1. Pregaine Clear Gel Shampoo

The Pregaine Clear Gel Thinning Hair Care Shampoo is aimed particularly at normal to oily hair/scalps. Its positioning includes:

• Silicone-free formulation
• Hypoallergenic formulation
• Dermatologist-tested
• Designed to remove excess oil
• Designed to leave the scalp clean without residue
• Intended to add body and manageability to thinning hair
• Suitable for use alongside Regaine treatment

Singapore listings identify Thailand as the product’s country of origin.

2. Pregaine Frequent Use Shampoo

The Pregaine Frequent Use Thinning Hair Care Shampoo is positioned as the gentler option for people who wash their hair frequently. It is described as:

• Silicone-free
• Hypoallergenic
• Dermatologist-tested
• Designed for frequent cleansing
• Formulated to add body and manageability
• Suitable for thinning hair
• Containing wheat-derived protein/amino acids and vitamin B5/panthenol-related ingredients

Its listed active/functional ingredients include vitamin B5, hydrolyzed wheat protein and wheat amino acids. FairPrice describes the shampoo as pH-balanced at approximately 5.5 and suitable for daily use. 5

The two brands are often sold and marketed together, which can make their roles confusing. The official regional Regaine website presents Pregaine shampoo and Regaine minoxidil products as two complementary parts of its hair-care/treatment portfolio. 6

• Pregaine: The shampoo/hair-care component. Its purpose is to keep the scalp and hair clean and help thinning hair look fuller, more manageable, and less weighed down.
• Regaine: The hair-loss treatment component. Products sold under the Regaine name include topical minoxidil formulations.

Conceptually:

Pregaine = cleanse + condition the hair/scalp + improve appearance

Regaine = pharmaceutical hair-loss treatment

An important distinction is that Pregaine shampoo is not itself a minoxidil hair-regrowth treatment. Retailers note that Pregaine does not contain the active ingredient found in Regaine. Therefore, it should not be presented as a shampoo that directly treats androgenetic alopecia or causes hair regrowth.

Pregaine’s positioning differs from many mainstream cosmetic shampoos. Instead of marketing around fragrance or styling, the brand concentrates on the specific needs of fine and thinning hair. The underlying idea is that hair that is already fine or thinning can look flatter when weighed down by excess oil or heavy product residue. Consequently, Pregaine emphasizes:

clean scalp → less buildup/oil → lighter hair → greater apparent body and volume

The brand emphasizes manageability rather than claiming that shampoo itself can reverse the biological causes of hair loss.

Target Audience

Pregaine is aimed at both men and women. 5 Its target consumer broadly includes:

• People with naturally fine hair.
• People noticing early hair thinning.
• People whose hair lacks volume.
• People with oily scalps and fine/thinning hair.
• People looking for a shampoo to accompany a medically oriented hair-loss treatment.
• Consumers who want their existing hair to appear fuller without using heavy conditioning products.

The key difference is targeting.

Pregaine remains commercially available in Singapore. Current listings from major retailers include:

• 5
• 7
• 8

Watsons currently lists both the Clear Gel and Frequent Use 400 ml versions. 4

Pregaine is notable because it represents an older specialized approach to hair thinning: rather than claiming that shampoo itself can cure hair loss, it focuses on optimizing the condition and appearance of the hair and scalp while sitting alongside a dedicated hair-loss treatment.

Its history reflects the pharmaceutical origins of the wider Regaine/Pregaine brand family. Today, the brand’s retail presence is much narrower than mass-market shampoo brands; in Singapore, retailers currently show essentially two core Pregaine shampoo products rather than a large range of conditioners, styling products, and treatments.

1. PREGAINE Clear Gel Thinning Hair Care Shampoo Silicon Free (For Normal or Oily Hair + Ideal For Use With Regaine) 400ml…
2. Pregaine®洗髮露 – Regaine®及Pregaine® 產品
3. UPJOHN COMPANY, THE Trademarks Page 9 :: Justia Trademarks
4. PREGAINE Frequent Use Thinning Hair Care Shampoo Silicone Free (For Normal or Oily Hair + Ideal For Use With Regaine)…
5. Pregaine Shampoo – Frequent Use
6. Pregaine – Regaine 產品
7. NTUC FairPrice – Pregaine
8. Venus Beauty – Pregaine