{"id":46,"date":"2026-03-16T18:52:50","date_gmt":"2026-03-16T17:52:50","guid":{"rendered":"http:\/\/www.7virides.com\/cs\/suroviny\/prisady\/"},"modified":"2026-03-25T11:19:47","modified_gmt":"2026-03-25T10:19:47","slug":"prisady","status":"publish","type":"page","link":"https:\/\/www.7virides.com\/en\/suroviny\/prisady\/","title":{"rendered":"Soap Additives: Honey, Clays, Silk, Oatmeal and More"},"content":{"rendered":"<blockquote>\n<p><strong>TL;DR:<\/strong> Additives modify the properties of soap - honey speeds up production and adds color, clays cleanse oily skin, silk increases the feeling of luxury. Basic rule: gradually on trace, max 1-2 tablespoons per 500 g of oils. Try gradually - each ingredient will change the temperature or consistency.<\/p>\n<\/blockquote>\n<p>Additives are ingredients added to soap beyond the basic formula (oils + lye + water) that modify the resulting properties - skin feel, lather, conditioning, scent or appearance. Each ingredient brings a trade-off: benefits vs. durability vs. complexity of production.<\/p>\n<p>This encyclopedia covers the most commonly used ingredients with precise dosages, addition techniques and scientific explanations of function.<\/p>\n<h2 id=\"med-humektant-a-akcelerator-teploty\">Honey: humectant and temperature accelerator<\/h2>\n<p>Honey is a hygroscopic substance - it attracts and binds moisture. In soap it acts as a humectant and contributes to the feeling of softness after washing. It contains natural sugars (glucose, fructose) and enzymes that accelerate saponification in an alkaline process - honey is one of the most significant temperature accelerators in soap. A batch with honey can reach 65-70\u00b0C during the gel phase.<\/p>\n<p><strong>Practical effect:<\/strong> Golden to caramel colour of soap (Maillard reaction of sugars on heating). Gentle conditioning sensation. Contributes to a thicker, creamier lather.<\/p>\n<p><strong>How to add:<\/strong><\/p>\n<ul>\n<li>Add honey to the light trace - never to the lye or to the leaching solution<\/li>\n<li>Amount: 1-2 tablespoons (20-40 g) per 500 g of oils<\/li>\n<li>Higher quantity = stronger temperature acceleration, higher risk of overheating<\/li>\n<\/ul>\n<p><strong>Overheating warning:<\/strong> Honey significantly increases the temperature of the process. Put the mold after filling in the refrigerator or a chilled room (not in the heat). Avoid the gel stage by covering - or conversely, fully gel in the heat, but monitor the temperature.<\/p>\n<p><strong>Suitable combinations:<\/strong> Honey + oatmeal + milk = classic dry skin care.<\/p>\n<h2 id=\"ovesne-vlocky-exfoliace-a-zklidneni\">Oatmeal: exfoliation and soothing<\/h2>\n<p>Oatmeal is one of the oldest and best-studied ingredients in skin care. They contain beta-glucans (moisturizing polysaccharides), avenatonthramides (anti-inflammatory agents) and flavonoids. In the soap they create a gentle exfoliating effect and leave a protective film - suitable for sensitive and atopic skin.<\/p>\n<p><strong>Soap molds:<\/strong><\/p>\n<ul>\n<li><strong>Colloidal oatmeal:<\/strong> Very finely ground, homogeneous in soap. Best for delicate skin. Available as cosmetic raw material.<\/li>\n<li><strong>Finely ground oatmeal:<\/strong> Semolina texture - visible and tactile. Grind at home in a coffee grinder or food processor.<\/li>\n<li><strong>Whole flakes:<\/strong> Strong exfoliation, visible texture, rustic look. Suitable for feet or rougher skin.<\/li>\n<\/ul>\n<p><strong>Dosage:<\/strong> 2-4 tablespoons per 500 g of oils. For colloidal oatmeal 1-2 tablespoons. Add to trace as a powder or premixed in a small amount of oil.<\/p>\n<p><strong>The appearance of finished soap:<\/strong> Beige to caramel colour, flakes visible (in the coarse form). With honey they give a classic \"oatmeal&#8220; look.<\/p>\n<h2 id=\"jily-cisteni-podle-typu-pokozky\">Clays: cleansing by skin type<\/h2>\n<p>Clays are mineral additives with adsorptive properties - they attract and bind impurities, excess sebum and toxins. There are different groups for different skin types.<\/p>\n<h3 id=\"kaolin-bily-jil\">Kaolin (white clay)<\/h3>\n<p>The finest and gentlest clay. Low adsorption capacity - suitable for dry and normal skin. Adds a silky feel and slight slip (slipperiness when shaving).<\/p>\n<p><strong>Dosage:<\/strong> 1-2 tablespoons per 500 g of oils. Add premixed in oil to trace.<\/p>\n<h3 id=\"zelena-francouzska-hlina-french-green-clay\">French Green Clay<\/h3>\n<p>High adsorption capacity - for oily and acne-prone skin. Colouring: olive green soap colour (stable). Detoxifying effect for skin with enlarged pores.<\/p>\n<p><strong>Dosage:<\/strong> 1 tablespoon per 500 g of oils.<\/p>\n<h3 id=\"bentonit\">Bentonite<\/h3>\n<p>Volcanic clay with exceptional adsorption capacity. Binds heavy metals and toxins. Accelerates trace in soap - test consistency and add to light trace. Suitable for shaving soaps (adds slip).<\/p>\n<p><strong>Dosage:<\/strong> 1 teaspoon per 500 g of oils - more speeds up the trace.<\/p>\n<h3 id=\"rhassoul-jil-ghassoul\">Rhassoul clay (Ghassoul)<\/h3>\n<p>Moroccan clay from aluminous layers. Conditioning and cleansing at the same time. Dark brown colour. Ideal for hair and skin - traditional hammam ingredient.<\/p>\n<p><strong>Dosage:<\/strong> 1 tablespoon per 500 g of oils.<\/p>\n<h3 id=\"cerveny-jil-red-kaolin\">Red clay (Red Kaolin)<\/h3>\n<p>Soft pink to reddish brown colour. Medium adsorption. For normal to sensitive skin. Adds colour and minerals.<\/p>\n<h2 id=\"hedvabi-luxusni-pocit-a-lesk\">Silk: luxurious feel and shine<\/h2>\n<p>Silk - protein fibres from silkworms - is added to soap in the form of short fibres or hydrolysed silk protein. Hydrolysed silk protein binds to the surface of the skin and hair, leaving a protective film - a feeling of smoothness and shine.<\/p>\n<p><strong>How to add:<\/strong><\/p>\n<ul>\n<li><strong>Silk fibers (silk fibers, tussah silk):<\/strong> Add a small pinch (0.5-1 g per 500 g of oils) directly into the hot lye solution - the lye will dissolve the fibres. The solution turns golden and smells a little - normal. Alternatively, add the fibres to the water before adding the lye.<\/li>\n<li><strong>Hydrolyzed silk protein (liquid):<\/strong> Add directly to the trace. Amount: 5-10 ml per 500 g of oils.<\/li>\n<\/ul>\n<p><strong>Note:<\/strong> The silk fibres in the lye release amino acids - the soap then lathers better and has an absorbent feel. Do not confuse with silk cloth - it does not dissolve.<\/p>\n<h2 id=\"panthenol-kondicionovani-a-hojeni\">Panthenol: conditioning and healing<\/h2>\n<p>Panthenol (D-panthenol, provitamin B5) is a conditioning ingredient with a proven function in cosmetics. In the skin, it is converted into pantothenic acid (vitamin B5), which promotes regeneration. A humectant that binds moisture, soothes and promotes healing of minor skin injuries - a popular ingredient in soaps for sensitive skin and shampoo bars.<\/p>\n<p><strong>Forms:<\/strong><\/p>\n<ul>\n<li>Liquid panthenol: 75% or 50% solution in water. Add per trace - 1-3% of the total weight of oils.<\/li>\n<li>Panthenol DL powder: less common but more durable.<\/li>\n<\/ul>\n<p><strong>Dosage:<\/strong> 1-2% of the total weight of the oils (5-10 g per 500 g of oils). Add to the trace.<\/p>\n<h2 id=\"vitamin-e-antioxidant-a-trvanlivost\">Vitamin E: antioxidant and shelf life<\/h2>\n<p>Vitamin E (alpha-tocopherol or mixed tocopherols) is a natural antioxidant. In soap, it primarily serves the function of extending shelf life - it slows down the oxidation of unsaponified oils and thus delays rancidity (DOS - dreaded orange spots). It does not extend shelf life indefinitely - it is an antioxidant, not a preservative.<\/p>\n<p><strong>Dosage:<\/strong> 0.5-1% of the total weight of the oils. Add to the trace along with the essential oils.<\/p>\n<p><strong>Note:<\/strong> Vitamin E does not work against bacteria or fungi.<\/p>\n<h2 id=\"rozmarynovy-extrakt-roe-silny-antioxidant\">Rosemary oleoresin extract (ROE): potent antioxidant<\/h2>\n<p>ROE (Rosemary Oleoresin Extract) is a highly concentrated natural antioxidant from rosemary. Effective for preventing oxidation of polyunsaturated oils (linseed, hemp, sunflower) - more potent than vitamin E. Has a distinctive herbal rosemary scent that is almost imperceptible in the finished soap.<\/p>\n<p><strong>Dosage:<\/strong> 0,1-0,5 % of the total weight of the oils. Add to oils before adding lye or on trace.<\/p>\n<h2 id=\"aktivni-uhli-detoxikace-a-cerna-barva\">Activated charcoal: detox and black color<\/h2>\n<p>Activated charcoal adsorption ability binds dirt and excess sebum. See separate guide: <a href=\"\/en\/homemade-soap-recipes\/activated-charcoal-soap-recipe\/\">Activated charcoal soap<\/a>.<\/p>\n<p>Briefly: dosage 1 tsp\/500g for black soap, 0.5 tsp for dark grey. Add to trace in oil.<\/p>\n<h2 id=\"sodny-laktat-urychleni-tuhnuti\">Sodium lactate: faster unmolding<\/h2>\n<p>Sodium lactate is the sodium salt of lactic acid. Added to the leaching solution, it accelerates the setting of the soap - the soap can be removed from the moulds earlier (12-18 h instead of 24-48 h). Mechanism: sodium lactate reduces the free water content of soap and accelerates the crystallization of stearate salts.<\/p>\n<p><strong>Dosage:<\/strong> 1 teaspoon per 500 g of oils (approximately 3% by weight of the water in the recipe). Add to the infusion solution after cooling.<\/p>\n<p><strong>When to use:<\/strong> Summer production (high temperature = slower solidification), moulds with intricate design (earlier removal preserves details), mass production (faster mould turnaround).<\/p>\n<h2 id=\"mlecne-prisady-cukry-a-proteiny\">Milk additives: sugars and proteins<\/h2>\n<p>Goat milk, almond milk, oat milk, coconut milk - see separate guide <a href=\"\/en\/homemade-soap-recipes\/goat-milk-soap-recipe\/\">Goat milk soap<\/a>.<\/p>\n<p>The principle is the same for all lotions: sugars and proteins enrich the foam and condition the skin. The freezing technique applies to any milk containing lactose or other sugars.<\/p>\n<h2 id=\"prehledova-tabulka-prisad\">Additives overview table<\/h2>\n<table>\n<thead>\n<tr>\n<th>Additive<\/th>\n<th>Function<\/th>\n<th>Dosage\/500g of oils<\/th>\n<th>When to add<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Honey<\/td>\n<td>Humectant, conditioner, golden color<\/td>\n<td>1-2 tbsp<\/td>\n<td>Light trace<\/td>\n<\/tr>\n<tr>\n<td>Oatmeal (colloidal)<\/td>\n<td>Soothing, exfoliation, beta-glucans<\/td>\n<td>1-2 tbsp<\/td>\n<td>Trace<\/td>\n<\/tr>\n<tr>\n<td>Kaolin<\/td>\n<td>Adsorption, slip, gentle skin care<\/td>\n<td>1-2 tbsp<\/td>\n<td>In oil, at trace<\/td>\n<\/tr>\n<tr>\n<td>Green clay<\/td>\n<td>Adsorption, oily skin<\/td>\n<td>1 tbsp<\/td>\n<td>In oil, at trace<\/td>\n<\/tr>\n<tr>\n<td>Bentonite<\/td>\n<td>Strong adsorption, slip<\/td>\n<td>1 tsp<\/td>\n<td>In oil, at trace<\/td>\n<\/tr>\n<tr>\n<td>Silk fibres<\/td>\n<td>Silk feel, shine<\/td>\n<td>0,5-1 g<\/td>\n<td>Into lye<\/td>\n<\/tr>\n<tr>\n<td>Panthenol<\/td>\n<td>Conditioning, healing<\/td>\n<td>1-2 % of oils<\/td>\n<td>Trace<\/td>\n<\/tr>\n<tr>\n<td>Vitamin E<\/td>\n<td>Antioxidant, shelf life<\/td>\n<td>0,5-1 % of oils<\/td>\n<td>Trace<\/td>\n<\/tr>\n<tr>\n<td>ROE<\/td>\n<td>Antioxidant (strong), durability<\/td>\n<td>0,1-0,5 % oils<\/td>\n<td>Oils or at trace<\/td>\n<\/tr>\n<tr>\n<td>Sodium lactate<\/td>\n<td>Faster unmolding<\/td>\n<td>1 tsp<\/td>\n<td>Lye solution<\/td>\n<\/tr>\n<tr>\n<td>Activated charcoal<\/td>\n<td>Adsorption, black color<\/td>\n<td>1 tsp<\/td>\n<td>In oil, at trace<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"caste-otazky\">Frequently asked questions<\/h2>\n<p><strong>Can I combine all additives in one recipe?<\/strong> Technically yes, but each additive will change the characteristics - temperature (honey), consistency (clays, bentonite), foaming (silk). Start with one ingredient, then combine after testing.<\/p>\n<p><strong>Do additives affect saponification or NaOH calculation?<\/strong> No. The calculator only calculates oils - additives are not reflected in the NaOH calculation. You add them on the trace, after saponification.<\/p>\n<p><strong>When exactly should additives be added \u2014 at light, medium or heavy trace?<\/strong> Light trace (liquid emulsion) - for powders (clays, inks). Mediu trace (thicker) - for liquids (panthenol, silk protein). Leaching solution - for sodium lactate and silk fibres. See table above.<\/p>\n<p><strong>Do additives accelerate gel phase like honey?<\/strong> Definitely honey. Clays (especially bentonite) also, but less. Silk and panthenol no. Vitamin E and ROE no.<\/p>\n<p><strong>Can I buy ingredients from the grocery store?<\/strong> Honey yes - food grade and cosmetic grade are identical. The others (clays, panthenol, ROE) are specifically cosmetic - not available for the food industry.<\/p>\n<p><strong>How many additives is too many?<\/strong> More than 3 ingredients in one recipe is complicated - each changes the behavior of the production. I recommend max 2 ingredients for beginners.<\/p>\n<p><strong>See also:<\/strong><\/p>\n<ul>\n<li><a href=\"\/en\/soap-making-ingredients\/essential-oils-for-soap-making\/\">Essential Oils in Soap<\/a> - fragrances and therapeutic ingredients<\/li>\n<li><a href=\"\/en\/soap\/soap-making-techniques\/natural-colorants-soap\/\">Natural colorants<\/a> - herbs and plant extracts as ingredients<\/li>\n<li><a href=\"\/en\/homemade-soap-recipes\/goat-milk-soap-recipe\/\">Goat milk soap<\/a> - detailed guide to dairy ingredients<\/li>\n<li><a href=\"\/en\/homemade-soap-recipes\/activated-charcoal-soap-recipe\/\">Activated charcoal soap<\/a> - detailed guide to activated carbon<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>TL;DR: P\u0159\u00edsady modifikuj\u00ed vlastnosti m\u00fddla \u2014 med urychluje v\u00fdrobu a p\u0159id\u00e1v\u00e1 barvu, j\u00edly \u010dist\u00ed mastnou poko\u017eku, hedv\u00e1b\u00ed zvy\u0161uje pocit luxusu. [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"parent":16,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-46","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.7virides.com\/en\/wp-json\/wp\/v2\/pages\/46","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.7virides.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.7virides.com\/en\/wp-json\/wp\/v2\/types\/page"}],"replies":[{"embeddable":true,"href":"https:\/\/www.7virides.com\/en\/wp-json\/wp\/v2\/comments?post=46"}],"version-history":[{"count":2,"href":"https:\/\/www.7virides.com\/en\/wp-json\/wp\/v2\/pages\/46\/revisions"}],"predecessor-version":[{"id":219,"href":"https:\/\/www.7virides.com\/en\/wp-json\/wp\/v2\/pages\/46\/revisions\/219"}],"up":[{"embeddable":true,"href":"https:\/\/www.7virides.com\/en\/wp-json\/wp\/v2\/pages\/16"}],"wp:attachment":[{"href":"https:\/\/www.7virides.com\/en\/wp-json\/wp\/v2\/media?parent=46"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}