Help Center

After receiving the order confirmation email, domestic customers will receive their orders within 7 business days.For international customers, delivery takes approximately 3 weeks.

The shipping fee will be displayed on the checkout page before payment.This price already includes value-added tax (VAT).

We accept the following payment methods: Credit / Debit Card (via 2C2P), PayPal Express, Checkout Mobile Banking

Please provide your company name, address, phone number, and tax identification number.The tax invoice will be sent to you within 7 business days after you receive the product.

Customers may exchange or return products within 30 days from the date the product is received.Please note that the company reserves the right to honor the product price as confirmed in the order confirmation issued by Bertram (1958).We kindly ask customers to review all details and terms carefully before placing an order.

If you discover that the product is defective due to a manufacturing issue or damaged during shipping, please contact our Customer Service team within 30 days of receiving the product.You may contact us via:Phone: +66 97 264 2401 (Monday–Friday, 9:00 AM–6:00 PM)Email: cs@bertram1958.comLine Official Account: @peppermintfield or @SiangpurePlease provide details of the manufacturing defect or shipping damage and keep your receipt or tax invoice for verification and purchase confirmation from Bertram (1958).The company will review the reported defect or damage. The inspection process takes approximately 7 business days, after which we will contact you with the result using the contact details you provided.If the inspection confirms a manufacturing defect or shipping damage, the company will proceed with a product exchange or return.In case of a return:Once your refund request is approved, the refund will be processed automatically within 30 days after the cancellation is completed. The refund method will depend on the original payment method used.The company accepts product exchanges in the following cases:The product has a manufacturing defectThe product is damaged during shipping and cannot be used normallyThe company delivered the wrong product type, variant, or packaging size

Siangpure Oil Formula 1 vs. Formula 2 Formula 1 (Amber / stronger aroma): An amber-colored oil with Siangpure’s classic, strong herbal scent, highlighted by cinnamon and clove notes for a more intense, refreshing inhale. Formula 2 (Clear / milder & cooling): A clear oil with a milder, more cooling herbal aroma, led by peppermint. What’s similar: Both formulas use a similar core of active ingredients, including menthol, peppermint oil, and camphor, and they can both help with relieving headaches, dizziness, muscle pains, sprains and itches from insect bites.

Siangpure Yellow Balm vs. Siangpure White Balm Siangpure Yellow Balm (Hot formula): A warming balm formulated with 29% methyl salicylate and herbal extracts like peppermint, camphor, clove, and cinnamon—ideal when you prefer a heat-like soothing sensation for muscle and joint discomfort.Siangpure White Balm (Cool formula): A cooling balm formulated with 28% menthol plus peppermint, camphor, and methyl salicylate—ideal when you prefer a cooling, relaxing sensation for muscle and joint discomfort, and it can also help soothe itchiness from insect bites.

They contain the same formula with the same ingredients and benefits—the difference is packaging and how you apply it:Siangpure Oil with Ball Tip: A 5 cc glass bottle with a metal roller ball for quick, mess-free application and easy carry.Regular Siangpure Oil: Traditional bottles—3 cc and 7 cc in Siangpure’s signature triangular glass bottle, and 25 cc in a tall rectangular bottle for better value.Note: We also offer Siangpure Liquid Inhalant (Eucalyptus Scent) in a ball-tip format, but it’s a different product—designed mainly for nasal congestion and hay fever/allergy-related discomfort.

Siangpure products are manufactured under PIC/S GMP standards and supported by in-house laboratory capabilities for research and product development. Our formulas draw on traditional Chinese herbal knowledge and are refined through modern, controlled production processes with strict quality and hygiene systems across key areas, including packaging. Known for fast, effective relief of everyday aches, pains, and discomfort, Siangpure has been trusted for over 65 years and is available in 20+ countries.

Peppermint Field inhaler comes in 7 ring colors, and all colors have the same scent.

They use different formulas and scent profiles:Peppermint Field Inhaler: A smoother, relaxing aromatic scent for everyday refreshment.Peppermint Field Black Inhaler: A more intense, ultra-refreshing scent with double the eucalyptus oil for a stronger inhale experience.

Convenience stores and department stores such as 7-Eleven, Family Mart, Lotus, Big-C, Tops Supermarket, Watsons, etc., as well as pharmacies and leading retail stores nationwide. Also available online via LINE Official Account @peppermintfield, Shopee, and Lazada: Bertram 1958.

Currently, Peppermint Field Inhaler Orange Scent is available via LINE Official Account @peppermintfield, Shopee, and Lazada: Bertram 1958.

Facebook Fan Page, TikTok, IG, Twitter: Peppermint Field, and LINE Official Account: Peppermint Field

Peppermint Field products are manufactured under PIC/S GMP standards, with strict cleanliness and safety controls throughout production. We support product development through in-house laboratory capabilities and use quality ingredients—carefully controlling camphor levels to align with US FDA limits for more comfortable, frequent use. Because we believe quality matters in every breath, we go the extra mile in formulation and quality control to deliver consistently high-quality refreshment you can trust.

Sabai Arom essential oil products are made from a 100% Essential Oil Blend, enriched with natural extracts that work together effectively.

You may use essential oils as often as needed, but the amount and concentration should be considered.For inhalation, using essential oils 1–3 times per day is generally safe.For topical use, essential oils should be diluted with a carrier oil and should not be applied repeatedly to the same area too frequently. This allows the skin to rest and helps reduce the risk of irritation.

Some essential oils may be safe to use, while others may not be suitable.For safety reasons, pregnant women should consult a doctor or a qualified professional before use.

People with sensitive or allergy-prone skin can still use essential oils, but extra caution is required.Choose gentle essential oils and always dilute them with a carrier oil before applying to the skin.It is recommended to perform a patch test on the inner forearm or behind the ear and observe for 24 hours. If no irritation or abnormal reaction occurs, the product can be used safely.

In general, essential oils are intended for external use only.They should not be ingested or added to food, as they are highly concentrated and may cause allergic reactions, irritation, or harm to the digestive system.If internal use is necessary, it should only be done under the guidance of a doctor or a qualified professional with expertise in the safe use of essential oils.

A Carrier Oil or Base Oil is a vegetable oil used to dilute essential oils to reduce their concentration before applying them to the skin.This helps make essential oils safer to use and improves absorption. Common examples include coconut oil, almond oil, and jojoba oil.

Apply the Essential Oil Roller to areas such as the temples, the back of the neck, the wrists, or under the nose to allow the aroma to disperse and absorb most effectively.

Yes, regular cleaning is recommended to prevent the buildup of dust and bacteria and to maintain the quality of the essential oil.

Single essential oils are extracted from only one plant or flower, giving them a pure scent and specific properties. They are ideal for those who want to experience a natural aroma or create their own custom blends.Blended essential oils are a combination of essential oils from multiple sources, carefully formulated to create more complex aromas and enhanced benefits—such as relaxation, improved focus, or energy boosting. They are suitable for users who want a convenient, ready-to-use solution for specific purposes.

It is not recommended.Essential oils may affect pets differently, and some oils can be harmful to animals. For safety reasons, it is best to avoid using essential oils in areas where pets are present.

Flagship Store at JJ Market, Asiatique, Ecotopia @ Siam Discovery, PURE Pharmacy (Big C Ratchadamri branch), and other select locations, as well as online channels including shop.bertram1958.com, Shopee, and Lazada: Bertram 1958.