formulation of herbal cold cream

Bottom line. Herbal cold creams are formulated as water-in-oil emulsions that combine standard lipid bases with plant extracts to provide therapeutic benefits like anti-aging, wound healing, or antifungal activity.

Basic Composition and Formulation Protocol

Herbal cold creams are typically formulated as water-in-oil (w/o) emulsions, which are mixtures where small water droplets are dispersed within a continuous lipid (oil) phase (PMID: 36605824). The standard oil phase often consists of beeswax, mineral oil, paraffin wax, and cetyl alcohol, while the aqueous phase typically includes borax and purified water (PMID: 36605824). In one specific formulation, the oil phase comprised 15% beeswax and 45% liquid paraffin, with 1% borax in the aqueous phase (PMID: 34917159).

The standard preparation involves heating the oil and aqueous phases separately to approximately 70°C to 75°C (PMID: 36605824, PMID: 34917159). The aqueous phase is then added slowly to the oil phase with continuous stirring until a uniform, smooth paste forms as the mixture cools (PMID: 36605824).

Physicochemical Evaluation Parameters

To ensure the quality and shelf-life of the cream, several physical parameters are routinely measured:

• Viscosity and Spreadability: Viscosity refers to the thickness or stickiness of the cream, while spreadability measures how easily it can be applied to the skin (PMID: 36605824). Spreadability is often assessed by measuring the diameter of a sample after it is compressed between two glass plates for a set time (PMID: 36605824).
• Accelerated Stability: Formulations are subjected to stress conditions, such as 40°C and 75% relative humidity for 90 days, to check for phase separation or changes in color and odor (PMID: 36605824).
• Homogeneity: Consistency is evaluated by manually pressing the cream between fingers to detect grittiness or lumps (PMID: 36605824).

Therapeutic Herbal Additives

Research has explored various plant extracts to enhance the therapeutic properties of cold creams:

• Antifungal and Antiseptic: Caralluma adscendens var. attenuata extract (50–200 mg) was shown to significantly inhibit Candida albicans colonization in rat skin models (PMID: 36605824). Preliminary evidence also indicates that soft extracts of Scutellariae herba (20%) in cold creams may promote the formation of granulation tissue in burn models (PMID: 28174795).
• Wound Healing: Postbiotics—bioactive compounds produced by probiotics like L. reuteri or B. subtilis—were added at 1 mg per 10 g of cream, resulting in 100% wound closure in 14 days in rat models (PMID: 34917159). Additionally, creams with 10% and 20% pumpkin peel extract (Cucurbita moschata) significantly accelerated excision wound repair (PMID: 34568828).
• Anti-aging and Skin Rejuvenation: Fennel (Foeniculum vulgare) extract at 4% improved skin moisture and reduced transepidermal water loss (TEWL)—the amount of water that evaporates through the skin—over a 12-week study (PMID: 22393831). An abstract reports that anti-wrinkle creams containing saffron extract and avocado oil significantly reduced the volume of nasolabial folds (PMID: 31957954).

Safety and Tolerability Testing

Formulations containing Juniperus excelsa extract demonstrated good efficacy in treating cutaneous leishmaniasis (a parasitic skin infection) but caused mild to moderate local irritation in a small number of patients after several weeks of use (PMID: 28981503). In contrast, Caralluma based creams were reported as non-irritant in rat studies (PMID: 36605824).

Evidence Gaps and Limitations

While many herbal additives show promise in animal models, human clinical evidence is often limited or lacks methodological rigor. For example, a systematic review of plant-based treatments for leishmaniasis noted a high risk of bias in many clinical trials due to small sample sizes and inconsistent definitions of outcomes (PMID: 42247419). Furthermore, the long-term effectiveness and potential drug interactions of many extracts, such as those derived from agricultural waste, require more extensive validation in humans (PMID: 41897525, PMID: 39654386).

Research notebook

What are the common herbal ingredients (base oils, emulsifiers, and active extracts) used in herbal cold cream formulations?

Herbal cold creams are typically water-in-oil (w/o) emulsions comprising an oil phase (e.g., beeswax, mineral oil, paraffin wax, cetyl alcohol) and an aqueous phase (e.g., purified water, borax) supplemented with active herbal extracts.

Status: verified • Confidence: high

• Cold creams (water/oil emulsion) were prepared using an oil phase of beeswax, mineral oil, paraffin wax, and cetyl alcohol, and an aqueous phase of borax and purified water, combined with a methanolic extract of Caralluma adscendens var. attenuata. (PMID 36605824, full_text)
• A topical cream was developed using fennel (Foeniculum vulgare) extract as the active herbal ingredient for its anti-aging effects. (PMID 22393831, abstract)
• An anti-wrinkle cream was formulated incorporating saffron extract and avocado oil into the base. (PMID 31957954, abstract)

What are the standard formulation methods and ratios for preparing stable herbal cold creams?

Standard formulation of herbal cold creams involves heating the oil phase and aqueous phase separately to approximately 70°C, followed by gradual addition of the aqueous phase to the oil phase with continuous stirring to form a stable emulsion.

Status: verified • Confidence: high

• The oil phase (beeswax, paraffin, cetyl alcohol, mineral oil) and aqueous phase (water, borax, extract) were heated separately to 70°C for 10 minutes, then the aqueous phase was added slowly to the oil phase with continuous stirring. (PMID 36605824, full_text)
• Postbiotics-loaded cold creams were prepared by mixing the oil phase and aqueous phase under controlled heating and stirring conditions to ensure uniformity and stability. (PMID 34917159, abstract)

What are the physicochemical evaluation parameters (pH, viscosity, spreadability, stability) used to assess herbal cold creams?

Physicochemical evaluation of herbal cold creams involves assessing pH (typically targeted between 4.0 and 7.0 for skin compatibility), viscosity (to ensure shelf-life and flow properties), spreadability, and accelerated stability under stress conditions (e.g., 40°C and 75% relative humidity).

Status: verified • Confidence: high

• The formulated cold creams were evaluated for pH (values 6.1–6.3), spreadability (12.6–18.6 s), and viscosity; accelerated stability studies at 40°C/75% RH for 90 days showed no phase separation or color change. (PMID 36605824, full_text)
• Fennel-based cream formulations were evaluated for physical stability, color, and pH consistency over a period of time to ensure compatibility with human skin. (PMID 22393831, abstract)
• The saffron-based cream was characterized for spreadability, pH, and physical consistency to confirm its quality as a topical anti-wrinkle product. (PMID 31957954, abstract)

What are the common safety and efficacy tests performed on herbal cold creams (e.g., skin irritation, antimicrobial activity)?

Herbal cold creams are routinely tested for safety through skin irritation tests (e.g., patch tests on animal or human skin) and for efficacy through antimicrobial activity assays (e.g., zone of inhibition, colony-forming unit counts) or in vivo healing models.

Status: verified • Confidence: high

• Skin irritation tests on albino rats showed the formulated Caralluma cream was non-irritant; its efficacy was confirmed by a significant reduction in Candida albicans colony counts (log10 CFU/ml) on infected skin. (PMID 36605824, full_text)
• Cold creams containing postbiotics were evaluated for wound healing efficacy in a rat model, showing improved healing rates compared to control formulations. (PMID 34917159, abstract)
• Topical creams were tested for antioxidant potentiality and in vivo efficacy, alongside safety assessments to ensure they were suitable for human topical use. (PMID 26393899, abstract)

What are the recent trends or novel herbal additives used to enhance the therapeutic properties of cold creams?

Recent trends in herbal cold cream development include the incorporation of novel additives such as postbiotics, green-synthesized nanoparticles, and waste-derived ingredients (e.g., apple oleolite, fruit peel extracts) to enhance therapeutic activities like wound healing, anti-aging, and UV protection.

Status: verified • Confidence: medium

• Novel cold cream formulations utilizing postbiotics (bioactive compounds from probiotics) were developed and showed superior wound healing efficacy in rat models compared to standard preparations. (PMID 34917159, abstract)
• Green nanoparticles loaded with Mangifera indica (mango) extract were incorporated into topical emulsions to enhance anti-aging and antioxidant properties against oxidative stress. (PMID 36140367, abstract)
• Annurca apple oleolite, a functional ingredient derived from agricultural by-products, was used as a novel additive in cosmetic formulations for its significant skin-antiaging activity. (PMID 38338954, abstract)
• Fruit peel extracts (e.g., from Cucurbita moschata) are being explored as sustainable and effective additives for enhancing the wound-healing potential of topical creams. (PMID 34568828, abstract)