Frequently Asked Questions
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The 30g square-shouldered glass jar is the eye-cream and treatment size — eye creams, lip masks, concentrated retinol or vitamin C creams, spot and brightening treatments, and travel or discovery sizes of a face cream. Brands use it for the products that are dosed a pea at a time and priced by potency, not volume. The square shoulder gives it a clean, architectural profile.
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About four to six weeks of daily use for an eye cream or treatment. Eye and treatment creams are used a pea at a time, so a 30g jar lasts as long as a 50g face cream does — that is the logic of the size. Print the number of days on the label; it is the question customers ask before a repeat order.
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Yes — the jar ships with its lid and an inner wad under it. The lid is precision-threaded and the wad seals the mouth, so a cream or balm stays sealed from air and fingers through daily use and the product cannot creep into the threads. It is a jar for creams, balms, butters and scrubs; for a liquid, choose a bottle.
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Yes — this jar belongs to the Square Shoulder Sleeved Glass Bottles & Jars family (C54), and the same lid runs across the serum, lotion and toner bottles in it. Pick this jar for the cream, then the C54 bottles for the rest of the routine, and the whole line shares one lid on the shelf. See the C54 family collection.
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No — this is clear glass, so it lets light through; it shows the texture and colour of the cream and photographs best. That is the right choice for stable creams, water-based gels and products sold in a carton. For vitamin C, retinol or essential-oil formulas that fade under UV, choose an amber jar from the Glass Jars for Creams & Lotions collection, or keep this jar in its box.
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The flat faces take a rectangular label on the front and a second on the back, with the ingredients on the base — the layout that photographs best on a square jar. From 1,000 pieces the glass can be screen-printed, hot-foil stamped, frosted or painted to order; send the artwork on WhatsApp and we will say what fits this size.
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They ship straight from the factory cartons, not pre-washed or sterilised — wash the jar, lid and wad with warm water and a mild detergent, rinse, sterilise (a 70% isopropyl-alcohol rinse, or hot water for the glass) and air-dry fully, mouth down. Fill only a dry jar, and declare the net weight from a test fill of your own formula: the size on the jar is its capacity, and what it weighs filled depends on the density of the cream.
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No minimum online — order one jar to check the fit of your formula and label, then buy in bulk when the formula is final. The price on this page steps down as the quantity goes up; from 500 pieces WhatsApp +91 75500 42423 and we quote the exact jar and quantity. Printed, painted or frosted jars start at 1,000 pieces and custom lid colours at 5,000, and every order comes with a GST invoice.
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Yes — RENTRASPA dispatches the 30g square-shouldered glass jar from Chennai to every state: Bangalore, Mumbai, Delhi, Hyderabad, Pune, Kolkata and tier-2 cities alike. In-stock orders leave within three working days in multi-layer protective packing; breakage is rare, and if a jar arrives damaged, call or WhatsApp us with photos within 2 days of receipt and we will replace it. Order online with no minimum, or WhatsApp for a wholesale quote.